#4C81BB#4C81BB

#4C81BB is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 59.2% C 0.106 H 252.0°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#4C81BB
RGB	rgb(76, 129, 187)
HSL	hsl(211, 45%, 52%)
HSV	hsv(211, 59%, 73%)
CMYK	cmyk(59.4%, 31%, 0%, 26.7%)
CIE-LAB	lab(52.76, 0.03, -35.74)
CIE-LCH	lch(52.76, 35.74, 270.04°)
OKLab	oklab(59.21% -0.0328 -0.1008)
OKLCH	oklch(59.21% 0.106 252)
XYZ	xyz(19.7972, 20.8231, 49.9801)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C81BB #BB864C

analogous

#4CB9BB #4C81BB #4F4CBB

triadic

#4C81BB #BB4C81 #81BB4C

tetradic

#4C81BB #BB4CB9 #BB864C #4CBB4F

square

#4C81BB #BB4CB9 #BB864C #4CBB4F

split-complementary

#4C81BB #BB4F4C #B9BB4C

monochromatic

#274566 #386392 #4C81BB #78A0CC #A5BFDD

Accessibility & contrast

On white

4.07

#4C81BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#4C81BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C81BB

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C81BB	#FFFFFF	#000000	##000000
##4C81BB	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6984BE

Deuteranopia (green-blind)

#5A79BA

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4c81bb;
/* rgb */ color: rgb(76, 129, 187);
/* oklch */ color: oklch(59.2% 0.106 252.0);

Tailwind

colors: {
  custom: {
    50: '#87a5cf',
    500: '#4c81bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c81bb;
$custom-light: #87a5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4c81bb",
  "rgb": {
    "r": 76,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 211.351,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.59206,
    "c": 0.10597,
    "h": 252
  },
  "luminance": 0.20825
}

Semantic roles & 50–950 ramp

primary

#4C81BB

secondary

#CAB399

accent

#9753D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4C81BB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →