#3779D3#3779D3

#3779D3 is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.9% C 0.154 H 257.0°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3779D3
RGB	rgb(55, 121, 211)
HSL	hsl(215, 64%, 52%)
HSV	hsv(215, 74%, 83%)
CMYK	cmyk(73.9%, 42.7%, 0%, 17.3%)
CIE-LAB	lab(50.91, 9.83, -52.40)
CIE-LCH	lch(50.91, 53.32, 280.62°)
OKLab	oklab(57.95% -0.0345 -0.1499)
OKLCH	oklch(57.95% 0.154 257)
XYZ	xyz(20.1665, 19.1879, 64.2562)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779D3 #D39137

analogous

#37C7D3 #3779D3 #4337D3

triadic

#3779D3 #D33779 #79D337

tetradic

#3779D3 #D337C7 #D39137 #37D343

square

#3779D3 #D337C7 #D39137 #37D343

split-complementary

#3779D3 #D34337 #C7D337

monochromatic

#1A4176 #255CA8 #3779D3 #699BDE #9BBCE9

Accessibility & contrast

On white

4.34

#3779D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3779D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779D3

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779D3	#FFFFFF	#000000	##000000
##3779D3	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D81D6

Deuteranopia (green-blind)

#3073D1

Tritanopia (blue-blind)

#008E9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3779d3;
/* rgb */ color: rgb(55, 121, 211);
/* oklch */ color: oklch(57.9% 0.154 257.0);

Tailwind

colors: {
  custom: {
    50: '#829fe1',
    500: '#3779d3',
    950: '#000000',
  },
}

SCSS

$custom: #3779d3;
$custom-light: #829fe1;
$custom-dark: #000000;

JSON

{
  "hex": "#3779d3",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 211
  },
  "hsl": {
    "h": 214.615,
    "s": 63.934,
    "l": 52.157
  },
  "oklch": {
    "l": 0.57948,
    "c": 0.15383,
    "h": 257
  },
  "luminance": 0.1919
}

Semantic roles & 50–950 ramp

primary

#3779D3

secondary

#D5B891

accent

#A141E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3779D3

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

Preview Lab → · Contrast checker → · Palette generator →