#3877BD#3877BD

#3877BD is a mid, vivid cyan. Relative luminance 0.177; OKLCH L 56.2% C 0.127 H 253.0°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3877BD
RGB	rgb(56, 119, 189)
HSL	hsl(212, 54%, 48%)
HSV	hsv(212, 70%, 74%)
CMYK	cmyk(70.4%, 37%, 0%, 25.9%)
CIE-LAB	lab(49.14, 3.19, -42.64)
CIE-LCH	lch(49.14, 42.76, 274.28°)
OKLab	oklab(56.18% -0.037 -0.1213)
OKLCH	oklch(56.18% 0.127 253)
XYZ	xyz(17.4096, 17.7067, 50.6345)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877BD #BD7E38

analogous

#38B9BD #3877BD #3B38BD

triadic

#3877BD #BD3877 #77BD38

tetradic

#3877BD #BD38B9 #BD7E38 #38BD3B

square

#3877BD #BD38B9 #BD7E38 #38BD3B

split-complementary

#3877BD #BD3B38 #B9BD38

monochromatic

#1C3C5F #2A598E #3877BD #6296D0 #91B6DE

Accessibility & contrast

On white

4.62

#3877BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3877BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3877BD

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877BD	#FFFFFF	#000000	##FFFFFF
##3877BD	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577CC0

Deuteranopia (green-blind)

#446FBC

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3877bd;
/* rgb */ color: rgb(56, 119, 189);
/* oklch */ color: oklch(56.2% 0.127 253.0);

Tailwind

colors: {
  custom: {
    50: '#7e9dd1',
    500: '#3877bd',
    950: '#000000',
  },
}

SCSS

$custom: #3877bd;
$custom-light: #7e9dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3877bd",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 189
  },
  "hsl": {
    "h": 211.579,
    "s": 54.286,
    "l": 48.039
  },
  "oklch": {
    "l": 0.56183,
    "c": 0.12681,
    "h": 253
  },
  "luminance": 0.17709
}

Semantic roles & 50–950 ramp

primary

#3877BD

secondary

#C9AA87

accent

#984ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3877BD

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

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