#3871BB#3871BB

#3871BB is a mid, vivid cyan. Relative luminance 0.162; OKLCH L 54.7% C 0.131 H 256.0°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3871BB
RGB	rgb(56, 113, 187)
HSL	hsl(214, 54%, 48%)
HSV	hsv(214, 70%, 73%)
CMYK	cmyk(70.1%, 39.6%, 0%, 26.7%)
CIE-LAB	lab(47.28, 6.16, -44.43)
CIE-LCH	lch(47.28, 44.86, 277.89°)
OKLab	oklab(54.7% -0.0316 -0.1266)
OKLCH	oklch(54.7% 0.131 256)
XYZ	xyz(16.5024, 16.2371, 49.2684)
Luminance	0.1624 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871BB #BB8238

analogous

#38B2BB #3871BB #4138BB

triadic

#3871BB #BB3871 #71BB38

tetradic

#3871BB #BB38B2 #BB8238 #38BB41

square

#3871BB #BB38B2 #BB8238 #38BB41

split-complementary

#3871BB #BB4138 #B2BB38

monochromatic

#1C385D #2A558C #3871BB #6191D0 #90B2DE

Accessibility & contrast

On white

4.94

#3871BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3871BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871BB

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871BB	#FFFFFF	#000000	##FFFFFF
##3871BB	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F77BE

Deuteranopia (green-blind)

#3B6BBA

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3871bb;
/* rgb */ color: rgb(56, 113, 187);
/* oklch */ color: oklch(54.7% 0.131 256.0);

Tailwind

colors: {
  custom: {
    50: '#7e99d0',
    500: '#3871bb',
    950: '#000000',
  },
}

SCSS

$custom: #3871bb;
$custom-light: #7e99d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3871bb",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 187
  },
  "hsl": {
    "h": 213.893,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.54701,
    "c": 0.13054,
    "h": 256
  },
  "luminance": 0.16239
}

Semantic roles & 50–950 ramp

primary

#3871BB

secondary

#C8AC86

accent

#9D4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3871BB

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

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