#3777C6#3777C6

#3777C6 is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.7% C 0.139 H 255.2°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3777C6
RGB	rgb(55, 119, 198)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 72%, 78%)
CMYK	cmyk(72.2%, 39.9%, 0%, 22.4%)
CIE-LAB	lab(49.59, 6.31, -47.09)
CIE-LCH	lch(49.59, 47.51, 277.63°)
OKLab	oklab(56.69% -0.0355 -0.1343)
OKLCH	oklch(56.69% 0.139 255.2)
XYZ	xyz(18.3617, 18.0811, 55.9374)
Luminance	0.1808 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777C6 #C68637

analogous

#37BFC6 #3777C6 #3F37C6

triadic

#3777C6 #C63777 #77C637

tetradic

#3777C6 #C637BF #C68637 #37C63F

square

#3777C6 #C637BF #C68637 #37C63F

split-complementary

#3777C6 #C63F37 #BFC637

monochromatic

#1C3D66 #2A5A96 #3777C6 #6697D4 #96B8E2

Accessibility & contrast

On white

4.55

#3777C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#3777C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3777C6

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777C6	#FFFFFF	#000000	##000000
##3777C6	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527DC9

Deuteranopia (green-blind)

#3B70C4

Tritanopia (blue-blind)

#008995

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3777c6;
/* rgb */ color: rgb(55, 119, 198);
/* oklch */ color: oklch(56.7% 0.139 255.2);

Tailwind

colors: {
  custom: {
    50: '#7f9dd8',
    500: '#3777c6',
    950: '#000000',
  },
}

SCSS

$custom: #3777c6;
$custom-light: #7f9dd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3777c6",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 198
  },
  "hsl": {
    "h": 213.147,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.56689,
    "c": 0.13895,
    "h": 255.2
  },
  "luminance": 0.18083
}

Semantic roles & 50–950 ramp

primary

#3777C6

secondary

#CDB08C

accent

#9C48E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3777C6

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

Preview Lab → · Contrast checker → · Palette generator →