#3871C2#3871C2

#3871C2 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.1% C 0.140 H 257.6°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3871C2
RGB	rgb(56, 113, 194)
HSL	hsl(215, 55%, 49%)
HSV	hsv(215, 71%, 76%)
CMYK	cmyk(71.1%, 41.8%, 0%, 23.9%)
CIE-LAB	lab(47.68, 8.71, -47.84)
CIE-LCH	lch(47.68, 48.63, 280.32°)
OKLab	oklab(55.14% -0.0301 -0.1366)
OKLCH	oklch(55.14% 0.14 257.6)
XYZ	xyz(17.2701, 16.5442, 53.3117)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871C2 #C28938

analogous

#38B6C2 #3871C2 #4438C2

triadic

#3871C2 #C23871 #71C238

tetradic

#3871C2 #C238B6 #C28938 #38C244

square

#3871C2 #C238B6 #C28938 #38C244

split-complementary

#3871C2 #C24438 #B6C238

monochromatic

#1D3A63 #2A5593 #3871C2 #6592D2 #94B4E0

Accessibility & contrast

On white

4.87

#3871C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3871C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871C2

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871C2	#FFFFFF	#000000	##FFFFFF
##3871C2	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A78C5

Deuteranopia (green-blind)

#336BC0

Tritanopia (blue-blind)

#008490

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3871c2;
/* rgb */ color: rgb(56, 113, 194);
/* oklch */ color: oklch(55.1% 0.140 257.6);

Tailwind

colors: {
  custom: {
    50: '#7f99d5',
    500: '#3871c2',
    950: '#000000',
  },
}

SCSS

$custom: #3871c2;
$custom-light: #7f99d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3871c2",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 194
  },
  "hsl": {
    "h": 215.217,
    "s": 55.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.55138,
    "c": 0.13991,
    "h": 257.6
  },
  "luminance": 0.16546
}

Semantic roles & 50–950 ramp

primary

#3871C2

secondary

#CBB18A

accent

#A149DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3871C2

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

Preview Lab → · Contrast checker → · Palette generator →