#3877B6#3877B6

#3877B6 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.8% C 0.118 H 250.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3877B6
RGB	rgb(56, 119, 182)
HSL	hsl(210, 53%, 47%)
HSV	hsv(210, 69%, 71%)
CMYK	cmyk(69.2%, 34.6%, 0%, 28.6%)
CIE-LAB	lab(48.77, 0.68, -39.18)
CIE-LCH	lch(48.77, 39.19, 270.99°)
OKLab	oklab(55.78% -0.0388 -0.1112)
OKLCH	oklch(55.78% 0.118 250.8)
XYZ	xyz(16.6681, 17.4100, 46.7289)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877B6 #B67738

analogous

#38B6B6 #3877B6 #3838B6

triadic

#3877B6 #B63877 #77B638

tetradic

#3877B6 #B638B6 #B67738 #38B638

square

#3877B6 #B638B6 #B67738 #38B638

split-complementary

#3877B6 #B63838 #B6B638

monochromatic

#1B3A58 #2A5887 #3877B6 #5E96CD #8DB4DC

Accessibility & contrast

On white

4.68

#3877B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#3877B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3877B6

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877B6	#FFFFFF	#000000	##FFFFFF
##3877B6	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7AB9

Deuteranopia (green-blind)

#496EB5

Tritanopia (blue-blind)

#00868E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3877b6;
/* rgb */ color: rgb(56, 119, 182);
/* oklch */ color: oklch(55.8% 0.118 250.8);

Tailwind

colors: {
  custom: {
    50: '#7d9dcc',
    500: '#3877b6',
    950: '#000000',
  },
}

SCSS

$custom: #3877b6;
$custom-light: #7d9dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3877b6",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 182
  },
  "hsl": {
    "h": 210,
    "s": 52.941,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55777,
    "c": 0.11776,
    "h": 250.8
  },
  "luminance": 0.17412
}

Semantic roles & 50–950 ramp

primary

#3877B6

secondary

#C6A584

accent

#944BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3877B6

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

Preview Lab → · Contrast checker → · Palette generator →