#3777C4#3777C4

#3777C4 is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.6% C 0.136 H 254.7°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3777C4
RGB	rgb(55, 119, 196)
HSL	hsl(213, 56%, 49%)
HSV	hsv(213, 72%, 77%)
CMYK	cmyk(71.9%, 39.3%, 0%, 23.1%)
CIE-LAB	lab(49.48, 5.58, -46.12)
CIE-LCH	lch(49.48, 46.45, 276.90°)
OKLab	oklab(56.57% -0.0359 -0.1315)
OKLCH	oklch(56.57% 0.136 254.7)
XYZ	xyz(18.1325, 17.9894, 54.7305)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777C4 #C48437

analogous

#37BEC4 #3777C4 #3E37C4

triadic

#3777C4 #C43777 #77C437

tetradic

#3777C4 #C437BE #C48437 #37C43E

square

#3777C4 #C437BE #C48437 #37C43E

split-complementary

#3777C4 #C43E37 #BEC437

monochromatic

#1C3D64 #2A5A94 #3777C4 #6597D4 #94B7E1

Accessibility & contrast

On white

4.57

#3777C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3777C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3777C4

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777C4	#FFFFFF	#000000	##000000
##3777C4	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537DC7

Deuteranopia (green-blind)

#3D70C2

Tritanopia (blue-blind)

#008994

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3777c4;
/* rgb */ color: rgb(55, 119, 196);
/* oklch */ color: oklch(56.6% 0.136 254.7);

Tailwind

colors: {
  custom: {
    50: '#7f9dd6',
    500: '#3777c4',
    950: '#000000',
  },
}

SCSS

$custom: #3777c4;
$custom-light: #7f9dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3777c4",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 196
  },
  "hsl": {
    "h": 212.766,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.56566,
    "c": 0.13632,
    "h": 254.7
  },
  "luminance": 0.17991
}

Semantic roles & 50–950 ramp

primary

#3777C4

secondary

#CCAE8B

accent

#9B48DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3777C4

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

Preview Lab → · Contrast checker → · Palette generator →