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blue · cool

#6f72ec

a light, electric blue · cool · closest name: Medium Slate Blue

Token name suggestion: Morning Denim

RGB
111, 114, 236
HSL
239°, 77%, 68%
CMYK
53, 52, 0, 8
Luminance
0.2147

#6f72ec is a light electric blue, 239° on the wheel and 84/100 on the cool side. Put black text on it (5.29:1). As text it scores 3.97:1 on white — large text only. Nearest name is Medium Slate Blue, nearest Tailwind family is indigo.

hsl(239 77% 68%)rgb(111 114 236)Base step 400AA inkCool

At a glance

Every number on this page in one read: what #6f72ec is made of, how bright it looks, and which way it leans.

Hex
#6f72ec
Hue
239°
blue
Saturation
77%
electric
Lightness
68%
light
Brightness
93%
HSV value
Perceived
52%
weighted brightness
Luminance
0.2147
WCAG relative
Temperature
Cool
84/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
5.29:1
Closest name
Medium Slate Blue
ΔE2000 4
Chroma
70.0
LCH, 0–130ish
OKLCH L
0.612
perceptual lightness
Tailwind
indigo
500 · ΔE 4
Web-safe
#6666FF
nearest of 216
Where it sits
Hue239° of 360°
Saturation77%
Lightness68%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #6f72ec.

Temperature
Warm ← → Cool84% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red16%
Green56%
Blue28%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#6f72ec
HEX (8-digit)#6f72ecff
RGBrgb(111, 114, 236)
RGBArgba(111, 114, 236, 1)
HSLhsl(239, 77%, 68%)
HSV / HSBhsv(239, 53%, 93%)
HWBhwb(239 44% 7%)
CMYKcmyk(53%, 52%, 0%, 8%)
LABlab(53.5 32.1 -62.2)
LCHlch(53.5 70.0 297.3)
OKLCHoklch(0.612 0.180 278.6)
XYZ (D65)xyz(27.71, 21.47, 82.02)
Decimal7303916
Display P3color(display-p3 0.435 0.447 0.925)
Web-safe#6666FF

Copy-ready code

every platformclick to select
/* CSS */
color: #6f72ec;
background-color: #6f72ec;
/* CSS custom property */
--brand: #6f72ec;
/* Tailwind (arbitrary) */
class="text-[#6f72ec] bg-[#6f72ec]"
/* SCSS */
$brand: #6f72ec;
/* SwiftUI */
Color(red: 0.435, green: 0.447, blue: 0.925)
/* UIKit */
UIColor(red: 0.435, green: 0.447, blue: 0.925, alpha: 1)
/* Android XML */
<color name="brand">#6F72EC</color>
/* Android Compose */
Color(0xFF6F72EC)
/* Flutter */
Color(0xFF6F72EC)
/* Python / OpenCV (BGR) */
(236, 114, 111)
/* Python / PIL (RGB) */
(111, 114, 236)
/* Java AWT */
new Color(111, 114, 236)
/* .NET */
Color.FromArgb(255, 111, 114, 236)
/* OpenGL / Unity (0–1) */
(0.4353f, 0.4471f, 0.9255f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{111,114,236}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #6f72ec 85%, white);
border-color: color-mix(in oklab, #6f72ec 40%, transparent);
/* theme-aware in one line */
color: light-dark(#0F1171, #D3D3EE);
/* relative colour syntax */
--hover: hsl(from #6f72ec h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F3F3FC;
  --brand-100: #E7E7F9;
  --brand-200: #C7C9F4;
  --brand-300: #9C9EF2;
  --brand-400: #6f72ec;
  --brand-500: #393DE5;
  --brand-600: #1D21D8;
  --brand-700: #181BB4;
  --brand-800: #131690;
  --brand-900: #121468;
  --brand-950: #0B0D41;
  --brand: #6f72ec;
  --brand-ink: #000000;
  --brand-surface: #F4F4FA;
  --brand-border: #C0C1ED;
  --brand-hover: #4F53E8;
  --brand-pressed: #3034E4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141424;
    --brand-ink: #D3D3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3F3FC',
        100: '#E7E7F9',
        200: '#C7C9F4',
        300: '#9C9EF2',
        400: '#6f72ec',
        500: '#393DE5',
        600: '#1D21D8',
        700: '#181BB4',
        800: '#131690',
        900: '#121468',
        950: '#0B0D41',
        DEFAULT: '#6f72ec',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3F3FC,
  '100': #E7E7F9,
  '200': #C7C9F4,
  '300': #9C9EF2,
  '400': #6f72ec,
  '500': #393DE5,
  '600': #1D21D8,
  '700': #181BB4,
  '800': #131690,
  '900': #121468,
  '950': #0B0D41,
);
$brand-base: #6f72ec;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3F3FC", "$type": "color" },
      "100": { "$value": "#E7E7F9", "$type": "color" },
      "200": { "$value": "#C7C9F4", "$type": "color" },
      "300": { "$value": "#9C9EF2", "$type": "color" },
      "400": { "$value": "#6f72ec", "$type": "color" },
      "500": { "$value": "#393DE5", "$type": "color" },
      "600": { "$value": "#1D21D8", "$type": "color" },
      "700": { "$value": "#181BB4", "$type": "color" },
      "800": { "$value": "#131690", "$type": "color" },
      "900": { "$value": "#121468", "$type": "color" },
      "950": { "$value": "#0B0D41", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #6f72ec · 5.29:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 3.97:1
AA fail · AA large pass · AAA fail
Aa
Black text · 5.29:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #6f72ec as text scores 3.97:1 on white and 5.29:1 on black.
Best tinted ink on it, if plain black or white feels flat: #0F1171 at 3.95:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#6164EA · 4.65:1
AA on white−3% L
#6164EA
The quick fox
#393DE5 · 7.06:1
AAA on white−12% L
#393DE5
The quick fox
#6f72ec · 5.29:1
AA on blackalready passes
#6f72ec
The quick fox
#8A8CF0 · 7.09:1
AAA on black+6% L
#8A8CF0

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #6F72EC is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#6f72ec on white: 3.97:1
AA ✗ fail · AA-large · AAA
Aa
#6f72ec on black: 5.29:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #6f72ec as text on that neutral, and that neutral as text on #6f72ec.

NeutralRatioBoth directions
White3.97:1AaAa
Slate 503.79:1AaAa
Slate 1003.62:1AaAa
Slate 2003.22:1AaAa
Slate 3002.67:1AaAa
Slate 4001.55:1AaAa
Slate 5001.20:1AaAa
Slate 6001.91:1AaAa
Slate 7002.61:1AaAa
Slate 8003.69:1AaAa
Slate 9004.50:1AaAa
Black5.29:1AaAa
Colour vision deficiency
true color
protanopia · #3085F0
deuteranopia · #1D7BE9
tritanopia · #368DA4

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #6f72ec is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3F3FC
#E7E7F9
#C7C9F4
#9C9EF2
#6f72ec
#393DE5
#1D21D8
#181BB4
#131690
#121468
#0B0D41
Base = 400Lightest = 50 · #F3F3FCDarkest = 950 · #0B0D41Text step on white = 500
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.045 278.6);
  --brand-100: oklch(0.94 0.072 278.6);
  --brand-200: oklch(0.88 0.108 278.6);
  --brand-300: oklch(0.80 0.140 278.6);
  --brand-400: oklch(0.72 0.165 278.6);
  --brand-500: oklch(0.64 0.180 278.6);
  --brand-600: oklch(0.56 0.180 278.6);
  --brand-700: oklch(0.48 0.169 278.6);
  --brand-800: oklch(0.40 0.151 278.6);
  --brand-900: oklch(0.32 0.126 278.6);
  --brand-950: oklch(0.24 0.099 278.6);
}

Colors that work with #6f72ec

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F4FA
Tinted page background
Border#C0C1ED
Hairlines and dividers
Muted text#4B4C9B
Captions on the surface
Accent#B88B14
Second voice, not a rival
Dark variant#0F1171
Hover, pressed, headers
Light variant#E8E9FC
Selected rows, tints
Dark surface#141424
Dark-mode background
Hover#4F53E8
One step down in lightness
Pressed#3034E4
Two steps down
Disabled#E0E0EB
Chroma pulled out
Focus ring#7A7DF6
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #6f72ec

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Headings from 24px up on white
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Small text on white — under 4.5:1
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
24px / 18.66px bold
Safe as a fill behind white type
No — use #0F1171
Safe as a 1px border on white
Yes

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The lightness keeps it airy and approachable.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight32/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#ECE96F
Analogous left#6FB0EC
Analogous right#AA6FEC
Split-complement 1#ECAA6F
Split-complement 2#B0EC6F
Triadic 1#EC6F72
Triadic 2#72EC6F
Tetradic#EC6FB0
On the wheel
Base+30°−30°+120°+240°+180°239°

#6f72ec sits at 239°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red43.5%
Green44.7%
Blue92.5%
R · 0–255
111
0x6f
G · 0–255
114
0x72
B · 0–255
236
0xec

CMYK percentages

Cyan53.0%
Magenta51.7%
Yellow0.0%
Key (black)7.5%

Total ink coverage is 112%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#6f72ec text on a black background

contrast 5.29:1

Card sample

#6f72ec text on a white background

contrast 3.97:1

Card sample

#6f72ec on grey

3.62:1

#6f72ec on its own surface

3.62:1

#6f72ec on its dark surface

4.58:1

CSS3 live lab

Text font color

The quick brown fox

color: #6f72ec;
Background color
Panel with #6f72ec background
background-color: #6f72ec;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #6f72ec;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(111, 114, 236, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(111, 114, 236, 0.45);
Border & gradient
Gradient panel
border: 3px solid #6f72ec;
background: linear-gradient(135deg, #6f72ec, #BF6FEC);
Gradient text

Gradient headline

background: linear-gradient(90deg, #6f72ec, #DF6FEC);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #6f72ec;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #6f72ec;
caret-color: #6f72ec;
Left rule
Pull quote or callout
border-left: 4px solid #6f72ec;
Ring + tint
Selected chip
background: #E8E9FC;
box-shadow: inset 0 0 0 2px #6f72ec;
Conic badge
68%
background: conic-gradient(#6f72ec 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #6f72ec over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(111, 114, 236, 0.5)
rgb(111 114 236 / 50%)
#6f72ec80
hsl(239 77% 68% / 50%)
color-mix(in srgb, #6f72ec 50%, transparent)
Alpha8-digit hexFlat on white
10%#6f72ec1a#F1F1FD
20%#6f72ec33#E2E3FB
40%#6f72ec66#C5C7F7
60%#6f72ec99#A9AAF4
80%#6f72eccc#8C8EF0

Gradients from #6f72ec

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #A5A7F3, #6f72ec 45%, #0F1171);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #6f72ec, #C054E8);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #6f72ec, #ECE96F);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #C0C1F7 0%, #6f72ec 45%, #0F1171 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F4FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #9CD0F2 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C38AF0 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #0F1171 0%, transparent 65%), #6f72ec;

Monochromatic scale

Palettes built from #6f72ec

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#6f72ec in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 5.29:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#6f72ec, answered

What color is #6f72ec?

#6f72ec is a light electric blue, closest to Medium Slate Blue (ΔE2000 4). It sits at 239° on the hue wheel with 77% saturation and 68% lightness, which reads as cool.

What is the RGB value of #6f72ec?

rgb(111, 114, 236) — 111 red, 114 green and 236 blue out of 255, or 43.5% / 44.7% / 92.5% by channel.

What is #6f72ec in HSL and HSV?

hsl(239, 77%, 68%) and hsv(239, 53%, 93%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #6f72ec a light or a dark color?

It is a mid-tone. Relative luminance is 0.2147 and perceived brightness is 52%, so black text on it reaches 5.29:1.

Should I use black or white text on #6f72ec?

Black. It scores 5.29:1 against #6f72ec, versus 3.97:1 for white — AA at any size.

Is #6f72ec accessible on a white background?

#6f72ec on white scores 3.97:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #6164EA to reach 4.5:1, or #393DE5 for 7:1.

What is the complementary color of #6f72ec?

#ECE96F sits directly opposite on the wheel. Softer options are the split-complements #ECAA6F and #B0EC6F, which give the same contrast with far less vibration.

What colors go well with #6f72ec?

For interface work: #F4F4FA as the surface, #C0C1ED for borders, #4B4C9B for secondary text, #B88B14 as an accent and #0F1171 for hover and pressed states. For a palette, the analogous pair #6FB0EC and #AA6FEC stays calm, while #ECE96F is the loudest partner.

What is #6f72ec in CMYK for printing?

cmyk(53%, 52%, 0%, 8%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #6f72ec warm or cool?

Cool — it scores 84 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #9A6FEC; nudged cooler, #6D93EE.

Which Tailwind color is closest to #6f72ec?

The indigo family — its 500 step is #6366f1, ΔE2000 4 away. That is a visible difference, so define #6f72ec as a custom token rather than reaching for the built-in.

How do I use #6f72ec in Tailwind CSS?

Inline it as an arbitrary value with bg-[#6f72ec] or text-[#6f72ec], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #6f72ec with 50% opacity?

rgba(111, 114, 236, 0.5), or #6f72ec80 in eight-digit hex. Over white that composites to #B7B9F6; over black, #383976.

Is #6f72ec a web-safe color?

No. The nearest web-safe colour is #6666FF, ΔE2000 4.2 away. The palette only matters for legacy displays and some email clients now.

What does the color #6f72ec mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #6f72ec?

The safest is same-hue elevation: linear-gradient(135deg, #A5A7F3, #6f72ec 45%, #0F1171). For more colour, a short hue run to #C054E8 keeps it rich without turning muddy.

Work with #6f72ec in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #6f72ec at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.