#3777C8#3777C8

#3777C8 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.8% C 0.142 H 255.7°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3777C8
RGB	rgb(55, 119, 200)
HSL	hsl(214, 57%, 50%)
HSV	hsv(214, 73%, 78%)
CMYK	cmyk(72.5%, 40.5%, 0%, 21.6%)
CIE-LAB	lab(49.71, 7.04, -48.05)
CIE-LCH	lch(49.71, 48.57, 278.33°)
OKLab	oklab(56.81% -0.035 -0.1372)
OKLCH	oklch(56.81% 0.142 255.7)
XYZ	xyz(18.5939, 18.1740, 57.1604)
Luminance	0.1818 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777C8 #C88837

analogous

#37C0C8 #3777C8 #3F37C8

triadic

#3777C8 #C83777 #77C837

tetradic

#3777C8 #C837C0 #C88837 #37C83F

square

#3777C8 #C837C0 #C88837 #37C83F

split-complementary

#3777C8 #C83F37 #C0C837

monochromatic

#1D3E68 #2A5A98 #3777C8 #6798D5 #97B8E2

Accessibility & contrast

On white

4.53

#3777C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3777C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3777C8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777C8	#FFFFFF	#000000	##000000
##3777C8	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517DCB

Deuteranopia (green-blind)

#3970C6

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3777c8;
/* rgb */ color: rgb(55, 119, 200);
/* oklch */ color: oklch(56.8% 0.142 255.7);

Tailwind

colors: {
  custom: {
    50: '#809dd9',
    500: '#3777c8',
    950: '#000000',
  },
}

SCSS

$custom: #3777c8;
$custom-light: #809dd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3777c8",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 200
  },
  "hsl": {
    "h": 213.517,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.56812,
    "c": 0.14157,
    "h": 255.7
  },
  "luminance": 0.18176
}

Semantic roles & 50–950 ramp

primary

#3777C8

secondary

#CEB18D

accent

#9D48E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3777C8

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

Preview Lab → · Contrast checker → · Palette generator →