#3871BF#3871BF

#3871BF is a mid, vivid cyan. Relative luminance 0.164; OKLCH L 54.9% C 0.136 H 256.9°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3871BF
RGB	rgb(56, 113, 191)
HSL	hsl(215, 55%, 48%)
HSV	hsv(215, 71%, 75%)
CMYK	cmyk(70.7%, 40.8%, 0%, 25.1%)
CIE-LAB	lab(47.51, 7.62, -46.39)
CIE-LCH	lch(47.51, 47.01, 279.33°)
OKLab	oklab(54.95% -0.0307 -0.1324)
OKLCH	oklch(54.95% 0.136 256.9)
XYZ	xyz(16.9366, 16.4108, 51.5551)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871BF #BF8638

analogous

#38B4BF #3871BF #4338BF

triadic

#3871BF #BF3871 #71BF38

tetradic

#3871BF #BF38B4 #BF8638 #38BF43

square

#3871BF #BF38B4 #BF8638 #38BF43

split-complementary

#3871BF #BF4338 #B4BF38

monochromatic

#1C3960 #2A5590 #3871BF #6392D1 #92B3DF

Accessibility & contrast

On white

4.90

#3871BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#3871BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871BF

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871BF	#FFFFFF	#000000	##FFFFFF
##3871BF	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C77C2

Deuteranopia (green-blind)

#376BBD

Tritanopia (blue-blind)

#00838F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3871bf;
/* rgb */ color: rgb(56, 113, 191);
/* oklch */ color: oklch(54.9% 0.136 256.9);

Tailwind

colors: {
  custom: {
    50: '#7f99d3',
    500: '#3871bf',
    950: '#000000',
  },
}

SCSS

$custom: #3871bf;
$custom-light: #7f99d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3871bf",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 191
  },
  "hsl": {
    "h": 214.667,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54949,
    "c": 0.13588,
    "h": 256.9
  },
  "luminance": 0.16413
}

Semantic roles & 50–950 ramp

primary

#3871BF

secondary

#CAAE89

accent

#9F4ADE

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3871BF

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

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