#3879B1#3879B1

#3879B1 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 56.0% C 0.110 H 247.3°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3879B1
RGB	rgb(56, 121, 177)
HSL	hsl(208, 52%, 46%)
HSV	hsv(208, 68%, 69%)
CMYK	cmyk(68.4%, 31.6%, 0%, 30.6%)
CIE-LAB	lab(49.12, -2.31, -35.75)
CIE-LCH	lch(49.12, 35.82, 266.31°)
OKLab	oklab(55.97% -0.0423 -0.1011)
OKLCH	oklch(55.97% 0.11 247.3)
XYZ	xyz(16.4011, 17.6881, 44.1362)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879B1 #B17038

analogous

#38B1AC #3879B1 #383CB1

triadic

#3879B1 #B13879 #79B138

tetradic

#3879B1 #AC38B1 #B17038 #3CB138

square

#3879B1 #AC38B1 #B17038 #3CB138

split-complementary

#3879B1 #B1383C #B1AC38

monochromatic

#1B3954 #295983 #3879B1 #5B97CB #8AB5DA

Accessibility & contrast

On white

4.63

#3879B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3879B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3879B1

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879B1	#FFFFFF	#000000	##FFFFFF
##3879B1	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607BB3

Deuteranopia (green-blind)

#4F70B0

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3879b1;
/* rgb */ color: rgb(56, 121, 177);
/* oklch */ color: oklch(56.0% 0.110 247.3);

Tailwind

colors: {
  custom: {
    50: '#7c9fc8',
    500: '#3879b1',
    950: '#000000',
  },
}

SCSS

$custom: #3879b1;
$custom-light: #7c9fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3879b1",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 177
  },
  "hsl": {
    "h": 207.769,
    "s": 51.931,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55965,
    "c": 0.10963,
    "h": 247.3
  },
  "luminance": 0.1769
}

Semantic roles & 50–950 ramp

primary

#3879B1

secondary

#C4A081

accent

#8F4CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3879B1

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

Preview Lab → · Contrast checker → · Palette generator →