#3877BA#3877BA

#3877BA is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.123 H 252.1°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3877BA
RGB	rgb(56, 119, 186)
HSL	hsl(211, 54%, 47%)
HSV	hsv(211, 70%, 73%)
CMYK	cmyk(69.9%, 36%, 0%, 27.1%)
CIE-LAB	lab(48.98, 2.11, -41.16)
CIE-LCH	lch(48.98, 41.22, 272.93°)
OKLab	oklab(56.01% -0.0377 -0.117)
OKLCH	oklch(56.01% 0.123 252.1)
XYZ	xyz(17.0874, 17.5778, 48.9372)
Luminance	0.1758 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877BA #BA7B38

analogous

#38B8BA #3877BA #3A38BA

triadic

#3877BA #BA3877 #77BA38

tetradic

#3877BA #BA38B8 #BA7B38 #38BA3A

square

#3877BA #BA38B8 #BA7B38 #38BA3A

split-complementary

#3877BA #BA3A38 #B8BA38

monochromatic

#1C3B5C #2A598B #3877BA #6096CF #8FB5DD

Accessibility & contrast

On white

4.65

#3877BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3877BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3877BA

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877BA	#FFFFFF	#000000	##FFFFFF
##3877BA	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBD

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3877ba;
/* rgb */ color: rgb(56, 119, 186);
/* oklch */ color: oklch(56.0% 0.123 252.1);

Tailwind

colors: {
  custom: {
    50: '#7e9dcf',
    500: '#3877ba',
    950: '#000000',
  },
}

SCSS

$custom: #3877ba;
$custom-light: #7e9dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3877ba",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 186
  },
  "hsl": {
    "h": 210.923,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56007,
    "c": 0.12291,
    "h": 252.1
  },
  "luminance": 0.1758
}

Semantic roles & 50–950 ramp

primary

#3877BA

secondary

#C8A886

accent

#964BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3877BA

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

Preview Lab → · Contrast checker → · Palette generator →