#3877AB#3877AB

#3877AB is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.2% C 0.104 H 246.1°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3877AB
RGB	rgb(56, 119, 171)
HSL	hsl(207, 51%, 45%)
HSV	hsv(207, 67%, 67%)
CMYK	cmyk(67.3%, 30.4%, 0%, 32.9%)
CIE-LAB	lab(48.23, -3.22, -33.66)
CIE-LCH	lch(48.23, 33.81, 264.53°)
OKLab	oklab(55.17% -0.042 -0.0951)
OKLCH	oklch(55.17% 0.104 246.1)
XYZ	xyz(15.5756, 16.9731, 40.9755)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877AB #AB6C38

analogous

#38ABA6 #3877AB #383EAB

triadic

#3877AB #AB3877 #77AB38

tetradic

#3877AB #A638AB #AB6C38 #3EAB38

square

#3877AB #A638AB #AB6C38 #3EAB38

split-complementary

#3877AB #AB383E #ABA638

monochromatic

#1A374F #29577D #3877AB #5895C8 #86B3D7

Accessibility & contrast

On white

4.78

#3877AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3877AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3877AB

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877AB	#FFFFFF	#000000	##FFFFFF
##3877AB	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AD

Deuteranopia (green-blind)

#506EAA

Tritanopia (blue-blind)

#008389

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3877ab;
/* rgb */ color: rgb(56, 119, 171);
/* oklch */ color: oklch(55.2% 0.104 246.1);

Tailwind

colors: {
  custom: {
    50: '#7b9ec4',
    500: '#3877ab',
    950: '#000000',
  },
}

SCSS

$custom: #3877ab;
$custom-light: #7b9ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#3877ab",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 171
  },
  "hsl": {
    "h": 207.13,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55168,
    "c": 0.10397,
    "h": 246.1
  },
  "luminance": 0.16975
}

Semantic roles & 50–950 ramp

primary

#3877AB

secondary

#C19C7D

accent

#8D4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3877AB

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

Preview Lab → · Contrast checker → · Palette generator →