#3879C9#3879C9

#3879C9 is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.4% C 0.140 H 255.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3879C9
RGB	rgb(56, 121, 201)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 72%, 79%)
CMYK	cmyk(72.1%, 39.8%, 0%, 21.2%)
CIE-LAB	lab(50.37, 6.31, -47.56)
CIE-LCH	lch(50.37, 47.98, 277.56°)
OKLab	oklab(57.36% -0.036 -0.1357)
OKLCH	oklch(57.36% 0.14 255.2)
XYZ	xyz(19.0070, 18.7305, 57.8606)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879C9 #C98838

analogous

#38C2C9 #3879C9 #3F38C9

triadic

#3879C9 #C93879 #79C938

tetradic

#3879C9 #C938C2 #C98838 #38C93F

square

#3879C9 #C938C2 #C98838 #38C93F

split-complementary

#3879C9 #C93F38 #C2C938

monochromatic

#1D3F6A #2A5C9A #3879C9 #6899D6 #98BAE3

Accessibility & contrast

On white

4.42

#3879C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3879C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3879C9

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879C9	#FFFFFF	#000000	##000000
##3879C9	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547FCC

Deuteranopia (green-blind)

#3D72C7

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3879c9;
/* rgb */ color: rgb(56, 121, 201);
/* oklch */ color: oklch(57.4% 0.140 255.2);

Tailwind

colors: {
  custom: {
    50: '#809fda',
    500: '#3879c9',
    950: '#000000',
  },
}

SCSS

$custom: #3879c9;
$custom-light: #809fda;
$custom-dark: #000000;

JSON

{
  "hex": "#3879c9",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 201
  },
  "hsl": {
    "h": 213.103,
    "s": 57.312,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57357,
    "c": 0.14038,
    "h": 255.2
  },
  "luminance": 0.18733
}

Semantic roles & 50–950 ramp

primary

#3879C9

secondary

#CFB28E

accent

#9C47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3879C9

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

Preview Lab → · Contrast checker → · Palette generator →