#3779B7#3779B7

#3779B7 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.118 H 249.5°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#3779B7
RGB	rgb(55, 121, 183)
HSL	hsl(209, 54%, 47%)
HSV	hsv(209, 70%, 72%)
CMYK	cmyk(69.9%, 33.9%, 0%, 28.2%)
CIE-LAB	lab(49.38, -0.33, -38.80)
CIE-LCH	lch(49.38, 38.81, 269.51°)
OKLab	oklab(56.26% -0.0412 -0.1101)
OKLCH	oklch(56.26% 0.118 249.5)
XYZ	xyz(16.9570, 17.9040, 47.3527)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779B7 #B77537

analogous

#37B7B5 #3779B7 #3739B7

triadic

#3779B7 #B73779 #79B737

tetradic

#3779B7 #B537B7 #B77537 #39B737

square

#3779B7 #B537B7 #B77537 #39B737

split-complementary

#3779B7 #B73739 #B7B537

monochromatic

#1B3B59 #295A88 #3779B7 #5D97CE #8CB5DC

Accessibility & contrast

On white

4.58

#3779B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3779B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779B7

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779B7	#FFFFFF	#000000	##000000
##3779B7	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7CBA

Deuteranopia (green-blind)

#4B70B6

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3779b7;
/* rgb */ color: rgb(55, 121, 183);
/* oklch */ color: oklch(56.3% 0.118 249.5);

Tailwind

colors: {
  custom: {
    50: '#7d9fcd',
    500: '#3779b7',
    950: '#000000',
  },
}

SCSS

$custom: #3779b7;
$custom-light: #7d9fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3779b7",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 183
  },
  "hsl": {
    "h": 209.063,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5626,
    "c": 0.11753,
    "h": 249.5
  },
  "luminance": 0.17906
}

Semantic roles & 50–950 ramp

primary

#3779B7

secondary

#C7A483

accent

#924BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3779B7

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

Preview Lab → · Contrast checker → · Palette generator →