#3879BB#3879BB

#3879BB is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.5% C 0.122 H 251.2°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3879BB
RGB	rgb(56, 121, 187)
HSL	hsl(210, 54%, 48%)
HSV	hsv(210, 70%, 73%)
CMYK	cmyk(70.1%, 35.3%, 0%, 26.7%)
CIE-LAB	lab(49.62, 1.25, -40.73)
CIE-LCH	lch(49.62, 40.75, 271.76°)
OKLab	oklab(56.53% -0.0394 -0.1157)
OKLCH	oklch(56.53% 0.122 251.2)
XYZ	xyz(17.4346, 18.1015, 49.5792)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879BB #BB7A38

analogous

#38BABB #3879BB #3938BB

triadic

#3879BB #BB3879 #79BB38

tetradic

#3879BB #BB38BA #BB7A38 #38BB39

square

#3879BB #BB38BA #BB7A38 #38BB39

split-complementary

#3879BB #BB3938 #BABB38

monochromatic

#1C3C5D #2A5B8C #3879BB #6198D0 #90B6DE

Accessibility & contrast

On white

4.54

#3879BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#3879BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3879BB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879BB	#FFFFFF	#000000	##000000
##3879BB	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7DBE

Deuteranopia (green-blind)

#4970BA

Tritanopia (blue-blind)

#008991

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3879bb;
/* rgb */ color: rgb(56, 121, 187);
/* oklch */ color: oklch(56.5% 0.122 251.2);

Tailwind

colors: {
  custom: {
    50: '#7e9fd0',
    500: '#3879bb',
    950: '#000000',
  },
}

SCSS

$custom: #3879bb;
$custom-light: #7e9fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3879bb",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 187
  },
  "hsl": {
    "h": 210.229,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56525,
    "c": 0.12222,
    "h": 251.2
  },
  "luminance": 0.18103
}

Semantic roles & 50–950 ramp

primary

#3879BB

secondary

#C8A886

accent

#944BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3879BB

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

Preview Lab → · Contrast checker → · Palette generator →