#3779BD#3779BD

#3779BD is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.6% C 0.125 H 251.6°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3779BD
RGB	rgb(55, 121, 189)
HSL	hsl(210, 55%, 48%)
HSV	hsv(210, 71%, 74%)
CMYK	cmyk(70.9%, 36%, 0%, 25.9%)
CIE-LAB	lab(49.69, 1.82, -41.77)
CIE-LCH	lch(49.69, 41.81, 272.50°)
OKLab	oklab(56.6% -0.0396 -0.1187)
OKLCH	oklch(56.6% 0.125 251.6)
XYZ	xyz(17.5948, 18.1592, 50.7120)
Luminance	0.1816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779BD #BD7B37

analogous

#37BCBD #3779BD #3837BD

triadic

#3779BD #BD3779 #79BD37

tetradic

#3779BD #BD37BC #BD7B37 #37BD38

square

#3779BD #BD37BC #BD7B37 #37BD38

split-complementary

#3779BD #BD3837 #BCBD37

monochromatic

#1B3C5E #295B8E #3779BD #6098D1 #90B7DF

Accessibility & contrast

On white

4.53

#3779BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3779BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779BD

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779BD	#FFFFFF	#000000	##000000
##3779BD	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DC0

Deuteranopia (green-blind)

#4770BC

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3779bd;
/* rgb */ color: rgb(55, 121, 189);
/* oklch */ color: oklch(56.6% 0.125 251.6);

Tailwind

colors: {
  custom: {
    50: '#7e9fd1',
    500: '#3779bd',
    950: '#000000',
  },
}

SCSS

$custom: #3779bd;
$custom-light: #7e9fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3779bd",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 189
  },
  "hsl": {
    "h": 210.448,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56604,
    "c": 0.12516,
    "h": 251.6
  },
  "luminance": 0.18161
}

Semantic roles & 50–950 ramp

primary

#3779BD

secondary

#C9A886

accent

#954ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3779BD

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

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