#3877B1#3877B1

#3877B1 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.5% C 0.111 H 248.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3877B1
RGB	rgb(56, 119, 177)
HSL	hsl(209, 52%, 46%)
HSV	hsv(209, 68%, 69%)
CMYK	cmyk(68.4%, 32.8%, 0%, 30.6%)
CIE-LAB	lab(48.52, -1.10, -36.69)
CIE-LCH	lch(48.52, 36.70, 268.27°)
OKLab	oklab(55.5% -0.0402 -0.1039)
OKLCH	oklch(55.5% 0.111 248.8)
XYZ	xyz(16.1606, 17.2070, 44.0561)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877B1 #B17238

analogous

#38B1AE #3877B1 #383BB1

triadic

#3877B1 #B13877 #77B138

tetradic

#3877B1 #AE38B1 #B17238 #3BB138

square

#3877B1 #AE38B1 #B17238 #3BB138

split-complementary

#3877B1 #B1383B #B1AE38

monochromatic

#1B3854 #295883 #3877B1 #5B95CB #8AB3DA

Accessibility & contrast

On white

4.73

#3877B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3877B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3877B1

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877B1	#FFFFFF	#000000	##FFFFFF
##3877B1	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7AB3

Deuteranopia (green-blind)

#4C6EB0

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3877b1;
/* rgb */ color: rgb(56, 119, 177);
/* oklch */ color: oklch(55.5% 0.111 248.8);

Tailwind

colors: {
  custom: {
    50: '#7c9dc8',
    500: '#3877b1',
    950: '#000000',
  },
}

SCSS

$custom: #3877b1;
$custom-light: #7c9dc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3877b1",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 177
  },
  "hsl": {
    "h": 208.76,
    "s": 51.931,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55496,
    "c": 0.11141,
    "h": 248.8
  },
  "luminance": 0.17209
}

Semantic roles & 50–950 ramp

primary

#3877B1

secondary

#C4A181

accent

#914CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3877B1

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

Preview Lab → · Contrast checker → · Palette generator →