#3779B8#3779B8

#3779B8 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.119 H 249.8°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3779B8
RGB	rgb(55, 121, 184)
HSL	hsl(209, 54%, 47%)
HSV	hsv(209, 70%, 72%)
CMYK	cmyk(70.1%, 34.2%, 0%, 27.8%)
CIE-LAB	lab(49.43, 0.02, -39.30)
CIE-LCH	lch(49.43, 39.30, 270.04°)
OKLab	oklab(56.32% -0.0409 -0.1115)
OKLCH	oklch(56.32% 0.119 249.8)
XYZ	xyz(17.0614, 17.9458, 47.9028)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779B8 #B87637

analogous

#37B8B7 #3779B8 #3739B8

triadic

#3779B8 #B83779 #79B837

tetradic

#3779B8 #B737B8 #B87637 #39B837

square

#3779B8 #B737B8 #B87637 #39B837

split-complementary

#3779B8 #B83739 #B8B737

monochromatic

#1B3B5A #295A89 #3779B8 #5D97CF #8DB6DD

Accessibility & contrast

On white

4.58

#3779B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#3779B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779B8

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779B8	#FFFFFF	#000000	##000000
##3779B8	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7CBB

Deuteranopia (green-blind)

#4A70B7

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3779b8;
/* rgb */ color: rgb(55, 121, 184);
/* oklch */ color: oklch(56.3% 0.119 249.8);

Tailwind

colors: {
  custom: {
    50: '#7d9fcd',
    500: '#3779b8',
    950: '#000000',
  },
}

SCSS

$custom: #3779b8;
$custom-light: #7d9fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3779b8",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 184
  },
  "hsl": {
    "h": 209.302,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56317,
    "c": 0.11879,
    "h": 249.8
  },
  "luminance": 0.17948
}

Semantic roles & 50–950 ramp

primary

#3779B8

secondary

#C7A584

accent

#924ADD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3779B8

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

Preview Lab → · Contrast checker → · Palette generator →