#3879C4#3879C4

#3879C4 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.1% C 0.134 H 253.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3879C4
RGB	rgb(56, 121, 196)
HSL	hsl(212, 56%, 49%)
HSV	hsv(212, 71%, 77%)
CMYK	cmyk(71.4%, 38.3%, 0%, 23.1%)
CIE-LAB	lab(50.10, 4.50, -45.14)
CIE-LCH	lch(50.10, 45.37, 275.69°)
OKLab	oklab(57.05% -0.0371 -0.1286)
OKLCH	oklch(57.05% 0.134 253.9)
XYZ	xyz(18.4284, 18.4990, 54.8133)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879C4 #C48338

analogous

#38BFC4 #3879C4 #3D38C4

triadic

#3879C4 #C43879 #79C438

tetradic

#3879C4 #C438BF #C48338 #38C43D

square

#3879C4 #C438BF #C48338 #38C43D

split-complementary

#3879C4 #C43D38 #BFC438

monochromatic

#1D3E65 #2A5C94 #3879C4 #6699D3 #96B9E1

Accessibility & contrast

On white

4.47

#3879C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3879C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3879C4

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879C4	#FFFFFF	#000000	##000000
##3879C4	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577EC7

Deuteranopia (green-blind)

#4171C2

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3879c4;
/* rgb */ color: rgb(56, 121, 196);
/* oklch */ color: oklch(57.1% 0.134 253.9);

Tailwind

colors: {
  custom: {
    50: '#7f9fd6',
    500: '#3879c4',
    950: '#000000',
  },
}

SCSS

$custom: #3879c4;
$custom-light: #7f9fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3879c4",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 196
  },
  "hsl": {
    "h": 212.143,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57053,
    "c": 0.13385,
    "h": 253.9
  },
  "luminance": 0.18501
}

Semantic roles & 50–950 ramp

primary

#3879C4

secondary

#CCAE8C

accent

#9949DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3879C4

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

Preview Lab → · Contrast checker → · Palette generator →