#3777C0#3777C0

#3777C0 is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.3% C 0.131 H 253.7°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3777C0
RGB	rgb(55, 119, 192)
HSL	hsl(212, 55%, 48%)
HSV	hsv(212, 71%, 75%)
CMYK	cmyk(71.4%, 38%, 0%, 24.7%)
CIE-LAB	lab(49.26, 4.13, -44.17)
CIE-LCH	lch(49.26, 44.36, 275.34°)
OKLab	oklab(56.32% -0.0369 -0.1258)
OKLCH	oklch(56.32% 0.131 253.7)
XYZ	xyz(17.6833, 17.8097, 52.3646)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777C0 #C08037

analogous

#37BBC0 #3777C0 #3B37C0

triadic

#3777C0 #C03777 #77C037

tetradic

#3777C0 #C037BB #C08037 #37C03B

square

#3777C0 #C037BB #C08037 #37C03B

split-complementary

#3777C0 #C03B37 #BBC037

monochromatic

#1C3C61 #295A90 #3777C0 #6296D2 #92B6E0

Accessibility & contrast

On white

4.60

#3777C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3777C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3777C0

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777C0	#FFFFFF	#000000	##FFFFFF
##3777C0	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567CC3

Deuteranopia (green-blind)

#416FBF

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3777c0;
/* rgb */ color: rgb(55, 119, 192);
/* oklch */ color: oklch(56.3% 0.131 253.7);

Tailwind

colors: {
  custom: {
    50: '#7e9dd3',
    500: '#3777c0',
    950: '#000000',
  },
}

SCSS

$custom: #3777c0;
$custom-light: #7e9dd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3777c0",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 192
  },
  "hsl": {
    "h": 211.971,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.56324,
    "c": 0.13109,
    "h": 253.7
  },
  "luminance": 0.17812
}

Semantic roles & 50–950 ramp

primary

#3777C0

secondary

#CBAC88

accent

#9949DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3777C0

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

Preview Lab → · Contrast checker → · Palette generator →