#3877BF#3877BF

#3877BF is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.3% C 0.129 H 253.6°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3877BF
RGB	rgb(56, 119, 191)
HSL	hsl(212, 55%, 48%)
HSV	hsv(212, 71%, 75%)
CMYK	cmyk(70.7%, 37.7%, 0%, 25.1%)
CIE-LAB	lab(49.25, 3.91, -43.62)
CIE-LCH	lch(49.25, 43.80, 275.12°)
OKLab	oklab(56.3% -0.0365 -0.1242)
OKLCH	oklch(56.3% 0.129 253.6)
XYZ	xyz(17.6282, 17.7941, 51.7857)
Luminance	0.1780 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877BF #BF8038

analogous

#38BABF #3877BF #3C38BF

triadic

#3877BF #BF3877 #77BF38

tetradic

#3877BF #BF38BA #BF8038 #38BF3C

square

#3877BF #BF38BA #BF8038 #38BF3C

split-complementary

#3877BF #BF3C38 #BABF38

monochromatic

#1C3C60 #2A5A90 #3877BF #6396D1 #92B6DF

Accessibility & contrast

On white

4.61

#3877BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3877BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3877BF

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877BF	#FFFFFF	#000000	##FFFFFF
##3877BF	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567CC2

Deuteranopia (green-blind)

#426FBE

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3877bf;
/* rgb */ color: rgb(56, 119, 191);
/* oklch */ color: oklch(56.3% 0.129 253.6);

Tailwind

colors: {
  custom: {
    50: '#7f9dd3',
    500: '#3877bf',
    950: '#000000',
  },
}

SCSS

$custom: #3877bf;
$custom-light: #7f9dd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3877bf",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 191
  },
  "hsl": {
    "h": 212,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.56302,
    "c": 0.12942,
    "h": 253.6
  },
  "luminance": 0.17796
}

Semantic roles & 50–950 ramp

primary

#3877BF

secondary

#CAAC89

accent

#994ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3877BF

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

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