#3879B3#3879B3

#3879B3 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.1% C 0.112 H 248.2°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3879B3
RGB	rgb(56, 121, 179)
HSL	hsl(208, 52%, 46%)
HSV	hsv(208, 69%, 70%)
CMYK	cmyk(68.7%, 32.4%, 0%, 29.8%)
CIE-LAB	lab(49.21, -1.60, -36.75)
CIE-LCH	lch(49.21, 36.79, 267.51°)
OKLab	oklab(56.07% -0.0417 -0.1041)
OKLCH	oklch(56.07% 0.112 248.2)
XYZ	xyz(16.6019, 17.7684, 45.1938)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879B3 #B37238

analogous

#38B3AF #3879B3 #383BB3

triadic

#3879B3 #B33879 #79B338

tetradic

#3879B3 #AF38B3 #B37238 #3BB338

square

#3879B3 #AF38B3 #B37238 #3BB338

split-complementary

#3879B3 #B3383B #B3AF38

monochromatic

#1B3A56 #295984 #3879B3 #5C97CC #8BB5DB

Accessibility & contrast

On white

4.61

#3879B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3879B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3879B3

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879B3	#FFFFFF	#000000	##FFFFFF
##3879B3	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7BB5

Deuteranopia (green-blind)

#4E70B2

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3879b3;
/* rgb */ color: rgb(56, 121, 179);
/* oklch */ color: oklch(56.1% 0.112 248.2);

Tailwind

colors: {
  custom: {
    50: '#7c9fca',
    500: '#3879b3',
    950: '#000000',
  },
}

SCSS

$custom: #3879b3;
$custom-light: #7c9fca;
$custom-dark: #000000;

JSON

{
  "hex": "#3879b3",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 179
  },
  "hsl": {
    "h": 208.293,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56074,
    "c": 0.1121,
    "h": 248.2
  },
  "luminance": 0.1777
}

Semantic roles & 50–950 ramp

primary

#3879B3

secondary

#C5A182

accent

#904CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3879B3

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

Preview Lab → · Contrast checker → · Palette generator →