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blue · cool

#5995eb

a balanced, electric blue · cool · closest name: Cornflower Blue

Token name suggestion: Atlas Cobalt

RGB
89, 149, 235
HSL
215°, 79%, 64%
CMYK
62, 37, 0, 8
Luminance
0.2962

#5995eb is a balanced electric blue, 215° on the wheel and 97/100 on the cool side. Put black text on it (6.92:1). As text it scores 3.03:1 on white — large text only. Nearest name is Cornflower Blue, nearest Tailwind family is blue.

hsl(215 79% 64%)rgb(89 149 235)Base step 400AA inkCool

At a glance

Every number on this page in one read: what #5995eb is made of, how bright it looks, and which way it leans.

Hex
#5995eb
Hue
215°
blue
Saturation
79%
electric
Lightness
64%
balanced
Brightness
92%
HSV value
Perceived
58%
weighted brightness
Luminance
0.2962
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
6.92:1
Closest name
Cornflower Blue
ΔE2000 1.9
Chroma
49.6
LCH, 0–130ish
OKLCH L
0.668
perceptual lightness
Tailwind
blue
500 · ΔE 6
Web-safe
#6699FF
nearest of 216
Where it sits
Hue215° of 360°
Saturation79%
Lightness64%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #5995eb.

Temperature
Warm ← → Cool97% 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
Red7%
Green73%
Blue20%

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

Every format

HEX#5995eb
HEX (8-digit)#5995ebff
RGBrgb(89, 149, 235)
RGBArgba(89, 149, 235, 1)
HSLhsl(215, 79%, 64%)
HSV / HSBhsv(215, 62%, 92%)
HWBhwb(215 35% 8%)
CMYKcmyk(62%, 37%, 0%, 8%)
LABlab(61.3 6.6 -49.2)
LCHlch(61.3 49.6 277.7)
OKLCHoklch(0.668 0.143 257.5)
XYZ (D65)xyz(29.86, 29.61, 82.72)
Decimal5871083
Display P3color(display-p3 0.349 0.584 0.922)
Web-safe#6699FF

Copy-ready code

every platformclick to select
/* CSS */
color: #5995eb;
background-color: #5995eb;
/* CSS custom property */
--brand: #5995eb;
/* Tailwind (arbitrary) */
class="text-[#5995eb] bg-[#5995eb]"
/* SCSS */
$brand: #5995eb;
/* SwiftUI */
Color(red: 0.349, green: 0.584, blue: 0.922)
/* UIKit */
UIColor(red: 0.349, green: 0.584, blue: 0.922, alpha: 1)
/* Android XML */
<color name="brand">#5995EB</color>
/* Android Compose */
Color(0xFF5995EB)
/* Flutter */
Color(0xFF5995EB)
/* Python / OpenCV (BGR) */
(235, 149, 89)
/* Python / PIL (RGB) */
(89, 149, 235)
/* Java AWT */
new Color(89, 149, 235)
/* .NET */
Color.FromArgb(255, 89, 149, 235)
/* OpenGL / Unity (0–1) */
(0.3490f, 0.5843f, 0.9216f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{89,149,235}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #5995eb 85%, white);
border-color: color-mix(in oklab, #5995eb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#0E3772, #D3DEEE);
/* relative colour syntax */
--hover: hsl(from #5995eb 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: #F3F7FC;
  --brand-100: #E6EEF9;
  --brand-200: #C7DAF5;
  --brand-300: #9BBFF3;
  --brand-400: #5995eb;
  --brand-500: #377FE7;
  --brand-600: #1A69DA;
  --brand-700: #1658B6;
  --brand-800: #124692;
  --brand-900: #113569;
  --brand-950: #0B2142;
  --brand: #5995eb;
  --brand-ink: #000000;
  --brand-surface: #F4F7FA;
  --brand-border: #C0D2ED;
  --brand-hover: #3981E7;
  --brand-pressed: #1B6DE1;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141B24;
    --brand-ink: #D3DEEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3F7FC',
        100: '#E6EEF9',
        200: '#C7DAF5',
        300: '#9BBFF3',
        400: '#5995eb',
        500: '#377FE7',
        600: '#1A69DA',
        700: '#1658B6',
        800: '#124692',
        900: '#113569',
        950: '#0B2142',
        DEFAULT: '#5995eb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3F7FC,
  '100': #E6EEF9,
  '200': #C7DAF5,
  '300': #9BBFF3,
  '400': #5995eb,
  '500': #377FE7,
  '600': #1A69DA,
  '700': #1658B6,
  '800': #124692,
  '900': #113569,
  '950': #0B2142,
);
$brand-base: #5995eb;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3F7FC", "$type": "color" },
      "100": { "$value": "#E6EEF9", "$type": "color" },
      "200": { "$value": "#C7DAF5", "$type": "color" },
      "300": { "$value": "#9BBFF3", "$type": "color" },
      "400": { "$value": "#5995eb", "$type": "color" },
      "500": { "$value": "#377FE7", "$type": "color" },
      "600": { "$value": "#1A69DA", "$type": "color" },
      "700": { "$value": "#1658B6", "$type": "color" },
      "800": { "$value": "#124692", "$type": "color" },
      "900": { "$value": "#113569", "$type": "color" },
      "950": { "$value": "#0B2142", "$type": "color" }
    },
    "brandInk": { "$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 #5995eb · 6.92:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 3.03:1
AA fail · AA large pass · AAA fail
Aa
Black text · 6.92:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #5995eb as text scores 3.03:1 on white and 6.92:1 on black.
Best tinted ink on it, if plain black or white feels flat: #0E3772 at 3.83:1.

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
#2272E4 · 4.57:1
AA on white−12% L
#2272E4
The quick fox
#1555AF · 7.12:1
AAA on white−25% L
#1555AF
The quick fox
#5995eb · 6.92:1
AA on blackalready passes
#5995eb
The quick fox
#5D98EC · 7.17:1
AAA on black+1% L
#5D98EC

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5995EB 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
#5995eb on white: 3.03:1
AA ✗ fail · AA-large · AAA
Aa
#5995eb on black: 6.92:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #5995eb as text on that neutral, and that neutral as text on #5995eb.

NeutralRatioBoth directions
White3.03:1AaAa
Slate 502.90:1AaAa
Slate 1002.77:1AaAa
Slate 2002.46:1AaAa
Slate 3002.04:1AaAa
Slate 4001.18:1AaAa
Slate 5001.57:1AaAa
Slate 6002.50:1AaAa
Slate 7003.41:1AaAa
Slate 8004.82:1AaAa
Slate 9005.89:1AaAa
Black6.92:1AaAa
Colour vision deficiency
true color
protanopia · #709CEF
deuteranopia · #5C8EE9
tritanopia · #00A9B5

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. #5995eb 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.

#F3F7FC
#E6EEF9
#C7DAF5
#9BBFF3
#5995eb
#377FE7
#1A69DA
#1658B6
#124692
#113569
#0B2142
Base = 400Lightest = 50 · #F3F7FCDarkest = 950 · #0B2142Text step on white = 600
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 0.036 257.5);
  --brand-100: oklch(0.94 0.057 257.5);
  --brand-200: oklch(0.88 0.086 257.5);
  --brand-300: oklch(0.80 0.112 257.5);
  --brand-400: oklch(0.72 0.132 257.5);
  --brand-500: oklch(0.64 0.143 257.5);
  --brand-600: oklch(0.56 0.143 257.5);
  --brand-700: oklch(0.48 0.134 257.5);
  --brand-800: oklch(0.40 0.120 257.5);
  --brand-900: oklch(0.32 0.100 257.5);
  --brand-950: oklch(0.24 0.079 257.5);
}

Colors that work with #5995eb

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#F4F7FA
Tinted page background
Border#C0D2ED
Hairlines and dividers
Muted text#4B6C9B
Captions on the surface
Accent#BA4B12
Second voice, not a rival
Dark variant#0E3772
Hover, pressed, headers
Light variant#E8F0FC
Selected rows, tints
Dark surface#141B24
Dark-mode background
Hover#3981E7
One step down in lightness
Pressed#1B6DE1
Two steps down
Disabled#D2D9E2
Chroma pulled out
Focus ring#639FF5
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 #5995eb

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
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Small text on white — under 4.5:1
  • Full-page backgrounds — tiring over long sessions
  • 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 #0E3772
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 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
  • FormalityLow
  • EnergyHigh
  • Weight37/100
  • 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#EBAF59
Analogous left#59DEEB
Analogous right#6659EB
Split-complement 1#EB6659
Split-complement 2#DEEB59
Triadic 1#EB5995
Triadic 2#95EB59
Tetradic#EB59DE
On the wheel
Base+30°−30°+120°+240°+180°215°

#5995eb sits at 215°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red34.9%
Green58.4%
Blue92.2%
R · 0–255
89
0x59
G · 0–255
149
0x95
B · 0–255
235
0xeb

CMYK percentages

Cyan62.1%
Magenta36.6%
Yellow0.0%
Key (black)7.8%

Total ink coverage is 107%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#5995eb text on a black background

contrast 6.92:1

Card sample

#5995eb text on a white background

contrast 3.03:1

Card sample

#5995eb on grey

2.77:1

#5995eb on its own surface

2.82:1

#5995eb on its dark surface

5.71:1

CSS3 live lab

Text font color

The quick brown fox

color: #5995eb;
Background color
Panel with #5995eb background
background-color: #5995eb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #5995eb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(89, 149, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(89, 149, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5995eb;
background: linear-gradient(135deg, #5995eb, #7E59EB);
Gradient text

Gradient headline

background: linear-gradient(90deg, #5995eb, #A359EB);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #5995eb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #5995eb;
caret-color: #5995eb;
Left rule
Pull quote or callout
border-left: 4px solid #5995eb;
Ring + tint
Selected chip
background: #E8F0FC;
box-shadow: inset 0 0 0 2px #5995eb;
Conic badge
68%
background: conic-gradient(#5995eb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #5995eb 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(89, 149, 235, 0.5)
rgb(89 149 235 / 50%)
#5995eb80
hsl(215 79% 64% / 50%)
color-mix(in srgb, #5995eb 50%, transparent)
Alpha8-digit hexFlat on white
10%#5995eb1a#EEF4FD
20%#5995eb33#DEEAFB
40%#5995eb66#BDD5F7
60%#5995eb99#9BBFF3
80%#5995ebcc#7AAAEF

Gradients from #5995eb

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, #8FB8F2, #5995eb 45%, #0E3772);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #5995eb, #773EE8);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #5995eb, #EBAF59);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #ABC9F5 0%, #5995eb 45%, #0E3772 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F7FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #86F0F0 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #8974EE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #0E3772 0%, transparent 65%), #5995eb;

Monochromatic scale

Palettes built from #5995eb

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.

#5995eb 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

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 6.92:1.

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.

#5995eb, answered

What color is #5995eb?

#5995eb is a balanced electric blue, closest to Cornflower Blue (ΔE2000 1.9). It sits at 215° on the hue wheel with 79% saturation and 64% lightness, which reads as cool.

What is the RGB value of #5995eb?

rgb(89, 149, 235) — 89 red, 149 green and 235 blue out of 255, or 34.9% / 58.4% / 92.2% by channel.

What is #5995eb in HSL and HSV?

hsl(215, 79%, 64%) and hsv(215, 62%, 92%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #5995eb a light or a dark color?

It is a mid-tone. Relative luminance is 0.2962 and perceived brightness is 58%, so black text on it reaches 6.92:1.

Should I use black or white text on #5995eb?

Black. It scores 6.92:1 against #5995eb, versus 3.03:1 for white — AA at any size.

Is #5995eb accessible on a white background?

#5995eb on white scores 3.03:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #2272E4 to reach 4.5:1, or #1555AF for 7:1.

What is the complementary color of #5995eb?

#EBAF59 sits directly opposite on the wheel. Softer options are the split-complements #EB6659 and #DEEB59, which give the same contrast with far less vibration.

What colors go well with #5995eb?

For interface work: #F4F7FA as the surface, #C0D2ED for borders, #4B6C9B for secondary text, #BA4B12 as an accent and #0E3772 for hover and pressed states. For a palette, the analogous pair #59DEEB and #6659EB stays calm, while #EBAF59 is the loudest partner.

What is #5995eb in CMYK for printing?

cmyk(62%, 37%, 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 #5995eb warm or cool?

Cool — it scores 97 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #595FEB; nudged cooler, #408CEA.

Which Tailwind color is closest to #5995eb?

The blue family — its 500 step is #3b82f6, ΔE2000 6 away. That is a visible difference, so define #5995eb as a custom token rather than reaching for the built-in.

How do I use #5995eb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#5995eb] or text-[#5995eb], 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 #5995eb with 50% opacity?

rgba(89, 149, 235, 0.5), or #5995eb80 in eight-digit hex. Over white that composites to #ACCAF5; over black, #2D4B76.

Is #5995eb a web-safe color?

No. The nearest web-safe colour is #6699FF, ΔE2000 3.2 away. The palette only matters for legacy displays and some email clients now.

What does the color #5995eb 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 #5995eb?

The safest is same-hue elevation: linear-gradient(135deg, #8FB8F2, #5995eb 45%, #0E3772). For more colour, a short hue run to #773EE8 keeps it rich without turning muddy.

Work with #5995eb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #5995eb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.