#3879BF#3879BF

#3879BF is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.8% C 0.127 H 252.5°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3879BF
RGB	rgb(56, 121, 191)
HSL	hsl(211, 55%, 48%)
HSV	hsv(211, 71%, 75%)
CMYK	cmyk(70.7%, 36.6%, 0%, 25.1%)
CIE-LAB	lab(49.83, 2.69, -42.70)
CIE-LCH	lch(49.83, 42.78, 273.60°)
OKLab	oklab(56.76% -0.0384 -0.1214)
OKLCH	oklch(56.76% 0.127 252.5)
XYZ	xyz(17.8687, 18.2752, 51.8659)
Luminance	0.1828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879BF #BF7E38

analogous

#38BCBF #3879BF #3A38BF

triadic

#3879BF #BF3879 #79BF38

tetradic

#3879BF #BF38BC #BF7E38 #38BF3A

square

#3879BF #BF38BC #BF7E38 #38BF3A

split-complementary

#3879BF #BF3A38 #BCBF38

monochromatic

#1C3D60 #2A5B90 #3879BF #6398D1 #92B7DF

Accessibility & contrast

On white

4.51

#3879BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3879BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3879BF

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879BF	#FFFFFF	#000000	##000000
##3879BF	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597DC2

Deuteranopia (green-blind)

#4571BE

Tritanopia (blue-blind)

#008993

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3879bf;
/* rgb */ color: rgb(56, 121, 191);
/* oklch */ color: oklch(56.8% 0.127 252.5);

Tailwind

colors: {
  custom: {
    50: '#7f9fd2',
    500: '#3879bf',
    950: '#000000',
  },
}

SCSS

$custom: #3879bf;
$custom-light: #7f9fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3879bf",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 191
  },
  "hsl": {
    "h": 211.111,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.56757,
    "c": 0.12737,
    "h": 252.5
  },
  "luminance": 0.18277
}

Semantic roles & 50–950 ramp

primary

#3879BF

secondary

#CAAB89

accent

#974ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3879BF

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

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