#3779BF#3779BF

#3779BF is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.128 H 252.2°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3779BF
RGB	rgb(55, 121, 191)
HSL	hsl(211, 55%, 48%)
HSV	hsv(211, 71%, 75%)
CMYK	cmyk(71.2%, 36.6%, 0%, 25.1%)
CIE-LAB	lab(49.79, 2.54, -42.76)
CIE-LCH	lch(49.79, 42.83, 273.40°)
OKLab	oklab(56.72% -0.0391 -0.1216)
OKLCH	oklch(56.72% 0.128 252.2)
XYZ	xyz(17.8134, 18.2466, 51.8633)
Luminance	0.1825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779BF #BF7D37

analogous

#37BDBF #3779BF #3937BF

triadic

#3779BF #BF3779 #79BF37

tetradic

#3779BF #BF37BD #BF7D37 #37BF39

square

#3779BF #BF37BD #BF7D37 #37BF39

split-complementary

#3779BF #BF3937 #BDBF37

monochromatic

#1C3D60 #295B8F #3779BF #6298D2 #91B7DF

Accessibility & contrast

On white

4.52

#3779BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#3779BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779BF

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779BF	#FFFFFF	#000000	##000000
##3779BF	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597DC2

Deuteranopia (green-blind)

#4571BE

Tritanopia (blue-blind)

#008993

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3779bf;
/* rgb */ color: rgb(55, 121, 191);
/* oklch */ color: oklch(56.7% 0.128 252.2);

Tailwind

colors: {
  custom: {
    50: '#7e9fd2',
    500: '#3779bf',
    950: '#000000',
  },
}

SCSS

$custom: #3779bf;
$custom-light: #7e9fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3779bf",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 191
  },
  "hsl": {
    "h": 210.882,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.56721,
    "c": 0.12773,
    "h": 252.2
  },
  "luminance": 0.18249
}

Semantic roles & 50–950 ramp

primary

#3779BF

secondary

#CAAA88

accent

#9649DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3779BF

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

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