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blue · cool

#5d6bdf

a balanced, vivid blue · cool · closest name: Royal Blue

Token name suggestion: Atlas Sapphire

RGB
93, 107, 223
HSL
234°, 67%, 62%
CMYK
58, 52, 0, 13
Luminance
0.1817

#5d6bdf is a balanced vivid blue, 234° on the wheel and 87/100 on the cool side. Put black text on it (4.63:1). As text it scores 4.53:1 on white — safe at any size. Nearest name is Royal Blue, nearest Tailwind family is indigo.

hsl(234 67% 62%)rgb(93 107 223)Base step 400AA inkCool

At a glance

Every number on this page in one read: what #5d6bdf is made of, how bright it looks, and which way it leans.

Hex
#5d6bdf
Hue
234°
blue
Saturation
67%
vivid
Lightness
62%
balanced
Brightness
87%
HSV value
Perceived
48%
weighted brightness
Luminance
0.1817
WCAG relative
Temperature
Cool
87/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
4.63:1
Closest name
Royal Blue
ΔE2000 3.8
Chroma
67.5
LCH, 0–130ish
OKLCH L
0.578
perceptual lightness
Tailwind
indigo
500 · ΔE 3.2
Web-safe
#6666CC
nearest of 216
Where it sits
Hue234° of 360°
Saturation67%
Lightness62%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #5d6bdf.

Temperature
Warm ← → Cool87% 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
Red13%
Green58%
Blue29%

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

Every format

HEX#5d6bdf
HEX (8-digit)#5d6bdfff
RGBrgb(93, 107, 223)
RGBArgba(93, 107, 223, 1)
HSLhsl(234, 67%, 62%)
HSV / HSBhsv(234, 58%, 87%)
HWBhwb(234 36% 13%)
CMYKcmyk(58%, 52%, 0%, 13%)
LABlab(49.7 28.8 -61.0)
LCHlch(49.7 67.5 295.2)
OKLCHoklch(0.578 0.175 274.4)
XYZ (D65)xyz(23.09, 18.17, 72.09)
Decimal6122463
Display P3color(display-p3 0.365 0.420 0.875)
Web-safe#6666CC

Copy-ready code

every platformclick to select
/* CSS */
color: #5d6bdf;
background-color: #5d6bdf;
/* CSS custom property */
--brand: #5d6bdf;
/* Tailwind (arbitrary) */
class="text-[#5d6bdf] bg-[#5d6bdf]"
/* SCSS */
$brand: #5d6bdf;
/* SwiftUI */
Color(red: 0.365, green: 0.420, blue: 0.875)
/* UIKit */
UIColor(red: 0.365, green: 0.420, blue: 0.875, alpha: 1)
/* Android XML */
<color name="brand">#5D6BDF</color>
/* Android Compose */
Color(0xFF5D6BDF)
/* Flutter */
Color(0xFF5D6BDF)
/* Python / OpenCV (BGR) */
(223, 107, 93)
/* Python / PIL (RGB) */
(93, 107, 223)
/* Java AWT */
new Color(93, 107, 223)
/* .NET */
Color.FromArgb(255, 93, 107, 223)
/* OpenGL / Unity (0–1) */
(0.3647f, 0.4196f, 0.8745f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{93,107,223}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #5d6bdf 85%, white);
border-color: color-mix(in oklab, #5d6bdf 40%, transparent);
/* theme-aware in one line */
color: light-dark(#151E6A, #D3D6EE);
/* relative colour syntax */
--hover: hsl(from #5d6bdf 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: #F3F4FB;
  --brand-100: #E8E9F8;
  --brand-200: #CACFF1;
  --brand-300: #A1A9EC;
  --brand-400: #5d6bdf;
  --brand-500: #4454DA;
  --brand-600: #283ACC;
  --brand-700: #2230AA;
  --brand-800: #1B2788;
  --brand-900: #172063;
  --brand-950: #0F143E;
  --brand: #5d6bdf;
  --brand-ink: #000000;
  --brand-surface: #F4F5FA;
  --brand-border: #C0C5ED;
  --brand-hover: #3F50D9;
  --brand-pressed: #283ACC;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141524;
    --brand-ink: #D3D6EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3F4FB',
        100: '#E8E9F8',
        200: '#CACFF1',
        300: '#A1A9EC',
        400: '#5d6bdf',
        500: '#4454DA',
        600: '#283ACC',
        700: '#2230AA',
        800: '#1B2788',
        900: '#172063',
        950: '#0F143E',
        DEFAULT: '#5d6bdf',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3F4FB,
  '100': #E8E9F8,
  '200': #CACFF1,
  '300': #A1A9EC,
  '400': #5d6bdf,
  '500': #4454DA,
  '600': #283ACC,
  '700': #2230AA,
  '800': #1B2788,
  '900': #172063,
  '950': #0F143E,
);
$brand-base: #5d6bdf;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3F4FB", "$type": "color" },
      "100": { "$value": "#E8E9F8", "$type": "color" },
      "200": { "$value": "#CACFF1", "$type": "color" },
      "300": { "$value": "#A1A9EC", "$type": "color" },
      "400": { "$value": "#5d6bdf", "$type": "color" },
      "500": { "$value": "#4454DA", "$type": "color" },
      "600": { "$value": "#283ACC", "$type": "color" },
      "700": { "$value": "#2230AA", "$type": "color" },
      "800": { "$value": "#1B2788", "$type": "color" },
      "900": { "$value": "#172063", "$type": "color" },
      "950": { "$value": "#0F143E", "$type": "color" }
    },
    "brandInk": { "$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 #5d6bdf · 4.63:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 4.53:1
AA pass · AA large pass · AAA fail
Aa
Black text · 4.63:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #5d6bdf as text scores 4.53:1 on white and 4.63:1 on black.
Best tinted ink on it, if plain black or white feels flat: #151E6A at 3.25:1.

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
#5d6bdf · 4.53:1
AA on whitealready passes
#5d6bdf
The quick fox
#3344D7 · 7.12:1
AAA on white−10% L
#3344D7
The quick fox
#5d6bdf · 4.63:1
AA on blackalready passes
#5d6bdf
The quick fox
#848EE7 · 7.00:1
AAA on black+9% L
#848EE7

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5D6BDF 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
#5d6bdf on white: 4.53:1
AA ✓ pass · AA-large · AAA
Aa
#5d6bdf on black: 4.63:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #5d6bdf as text on that neutral, and that neutral as text on #5d6bdf.

NeutralRatioBoth directions
White4.53:1AaAa
Slate 504.33:1AaAa
Slate 1004.14:1AaAa
Slate 2003.68:1AaAa
Slate 3003.05:1AaAa
Slate 4001.77:1AaAa
Slate 5001.05:1AaAa
Slate 6001.67:1AaAa
Slate 7002.28:1AaAa
Slate 8003.23:1AaAa
Slate 9003.94:1AaAa
Black4.63:1AaAa
Colour vision deficiency
true color
protanopia · #277CE3
deuteranopia · #0071DD
tritanopia · #00869B

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. #5d6bdf 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.

#F3F4FB
#E8E9F8
#CACFF1
#A1A9EC
#5d6bdf
#4454DA
#283ACC
#2230AA
#1B2788
#172063
#0F143E
Base = 400Lightest = 50 · #F3F4FBDarkest = 950 · #0F143EText step on white = 400
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 0.044 274.4);
  --brand-100: oklch(0.94 0.070 274.4);
  --brand-200: oklch(0.88 0.105 274.4);
  --brand-300: oklch(0.80 0.137 274.4);
  --brand-400: oklch(0.72 0.161 274.4);
  --brand-500: oklch(0.64 0.175 274.4);
  --brand-600: oklch(0.56 0.175 274.4);
  --brand-700: oklch(0.48 0.165 274.4);
  --brand-800: oklch(0.40 0.147 274.4);
  --brand-900: oklch(0.32 0.123 274.4);
  --brand-950: oklch(0.24 0.096 274.4);
}

Colors that work with #5d6bdf

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#F4F5FA
Tinted page background
Border#C0C5ED
Hairlines and dividers
Muted text#4B539B
Captions on the surface
Accent#AF7B1D
Second voice, not a rival
Dark variant#151E6A
Hover, pressed, headers
Light variant#EAECFB
Selected rows, tints
Dark surface#141524
Dark-mode background
Hover#3F50D9
One step down in lightness
Pressed#283ACC
Two steps down
Disabled#CDCFDF
Chroma pulled out
Focus ring#6674EB
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 #5d6bdf

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

Works well for
  • Body text and links on white
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The mid lightness keeps it versatile in both themes.

Worth knowing

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

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight38/100
  • 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#DFD15D
Analogous left#5DACDF
Analogous right#905DDF
Split-complement 1#DF905D
Split-complement 2#ACDF5D
Triadic 1#DF5D6B
Triadic 2#6BDF5D
Tetradic#DF5DAC
On the wheel
Base+30°−30°+120°+240°+180°234°

#5d6bdf sits at 234°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red36.5%
Green42.0%
Blue87.5%
R · 0–255
93
0x5d
G · 0–255
107
0x6b
B · 0–255
223
0xdf

CMYK percentages

Cyan58.3%
Magenta52.0%
Yellow0.0%
Key (black)12.5%

Total ink coverage is 123%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#5d6bdf text on a black background

contrast 4.63:1

Card sample

#5d6bdf text on a white background

contrast 4.53:1

Card sample

#5d6bdf on grey

4.14:1

#5d6bdf on its own surface

4.16:1

#5d6bdf on its dark surface

3.99:1

CSS3 live lab

Text font color

The quick brown fox

color: #5d6bdf;
Background color
Panel with #5d6bdf background
background-color: #5d6bdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #5d6bdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(93, 107, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(93, 107, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5d6bdf;
background: linear-gradient(135deg, #5d6bdf, #A65DDF);
Gradient text

Gradient headline

background: linear-gradient(90deg, #5d6bdf, #C65DDF);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #5d6bdf;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #5d6bdf;
caret-color: #5d6bdf;
Left rule
Pull quote or callout
border-left: 4px solid #5d6bdf;
Ring + tint
Selected chip
background: #EAECFB;
box-shadow: inset 0 0 0 2px #5d6bdf;
Conic badge
68%
background: conic-gradient(#5d6bdf 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #5d6bdf 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(93, 107, 223, 0.5)
rgb(93 107 223 / 50%)
#5d6bdf80
hsl(234 67% 62% / 50%)
color-mix(in srgb, #5d6bdf 50%, transparent)
Alpha8-digit hexFlat on white
10%#5d6bdf1a#EFF0FC
20%#5d6bdf33#DFE1F9
40%#5d6bdf66#BEC4F2
60%#5d6bdf99#9EA6EC
80%#5d6bdfcc#7D89E5

Gradients from #5d6bdf

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, #909AE9, #5d6bdf 45%, #151E6A);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #5d6bdf, #A444DA);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #5d6bdf, #DFD15D);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #AAB1EE 0%, #5d6bdf 45%, #151E6A 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F5FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #88CAE7 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #AB77E4 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #151E6A 0%, transparent 65%), #5d6bdf;

Monochromatic scale

Palettes built from #5d6bdf

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.

#5d6bdf 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
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

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 4.63:1.

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.

#5d6bdf, answered

What color is #5d6bdf?

#5d6bdf is a balanced vivid blue, closest to Royal Blue (ΔE2000 3.8). It sits at 234° on the hue wheel with 67% saturation and 62% lightness, which reads as cool.

What is the RGB value of #5d6bdf?

rgb(93, 107, 223) — 93 red, 107 green and 223 blue out of 255, or 36.5% / 42% / 87.5% by channel.

What is #5d6bdf in HSL and HSV?

hsl(234, 67%, 62%) and hsv(234, 58%, 87%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #5d6bdf a light or a dark color?

It is a mid-tone. Relative luminance is 0.1817 and perceived brightness is 48%, so black text on it reaches 4.63:1.

Should I use black or white text on #5d6bdf?

Black. It scores 4.63:1 against #5d6bdf, versus 4.53:1 for white — AA at any size.

Is #5d6bdf accessible on a white background?

#5d6bdf on white scores 4.53:1, which clears AA at every size but not AAA.

What is the complementary color of #5d6bdf?

#DFD15D sits directly opposite on the wheel. Softer options are the split-complements #DF905D and #ACDF5D, which give the same contrast with far less vibration.

What colors go well with #5d6bdf?

For interface work: #F4F5FA as the surface, #C0C5ED for borders, #4B539B for secondary text, #AF7B1D as an accent and #151E6A for hover and pressed states. For a palette, the analogous pair #5DACDF and #905DDF stays calm, while #DFD15D is the loudest partner.

What is #5d6bdf in CMYK for printing?

cmyk(58%, 52%, 0%, 13%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #5d6bdf warm or cool?

Cool — it scores 87 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #7F5DDF; nudged cooler, #5B87E1.

Which Tailwind color is closest to #5d6bdf?

The indigo family — its 500 step is #6366f1, ΔE2000 3.2 away. That is a visible difference, so define #5d6bdf as a custom token rather than reaching for the built-in.

How do I use #5d6bdf in Tailwind CSS?

Inline it as an arbitrary value with bg-[#5d6bdf] or text-[#5d6bdf], 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 #5d6bdf with 50% opacity?

rgba(93, 107, 223, 0.5), or #5d6bdf80 in eight-digit hex. Over white that composites to #AEB5EF; over black, #2F3670.

Is #5d6bdf a web-safe color?

No. The nearest web-safe colour is #6666CC, ΔE2000 3.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #5d6bdf 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 #5d6bdf?

The safest is same-hue elevation: linear-gradient(135deg, #909AE9, #5d6bdf 45%, #151E6A). For more colour, a short hue run to #A444DA keeps it rich without turning muddy.

Work with #5d6bdf in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #5d6bdf at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.