#3879AB#3879AB

#3879AB is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.102 H 244.4°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3879AB
RGB	rgb(56, 121, 171)
HSL	hsl(206, 51%, 45%)
HSV	hsv(206, 67%, 67%)
CMYK	cmyk(67.3%, 29.2%, 0%, 32.9%)
CIE-LAB	lab(48.83, -4.41, -32.72)
CIE-LCH	lch(48.83, 33.01, 262.32°)
OKLab	oklab(55.64% -0.0441 -0.0923)
OKLCH	oklch(55.64% 0.102 244.4)
XYZ	xyz(15.8162, 17.4541, 41.0556)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879AB #AB6A38

analogous

#38ABA4 #3879AB #383FAB

triadic

#3879AB #AB3879 #79AB38

tetradic

#3879AB #A438AB #AB6A38 #3FAB38

square

#3879AB #A438AB #AB6A38 #3FAB38

split-complementary

#3879AB #AB383F #ABA438

monochromatic

#1A384F #29587D #3879AB #5897C8 #86B4D7

Accessibility & contrast

On white

4.68

#3879AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3879AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3879AB

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879AB	#FFFFFF	#000000	##FFFFFF
##3879AB	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637AAD

Deuteranopia (green-blind)

#536FAA

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3879ab;
/* rgb */ color: rgb(56, 121, 171);
/* oklch */ color: oklch(55.6% 0.102 244.4);

Tailwind

colors: {
  custom: {
    50: '#7b9fc4',
    500: '#3879ab',
    950: '#000000',
  },
}

SCSS

$custom: #3879ab;
$custom-light: #7b9fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3879ab",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 171
  },
  "hsl": {
    "h": 206.087,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55643,
    "c": 0.10234,
    "h": 244.4
  },
  "luminance": 0.17456
}

Semantic roles & 50–950 ramp

primary

#3879AB

secondary

#C19B7D

accent

#8B4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3879AB

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

Preview Lab → · Contrast checker → · Palette generator →