#3777AF#3777AF

#3777AF is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.109 H 247.7°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3777AF
RGB	rgb(55, 119, 175)
HSL	hsl(208, 52%, 45%)
HSV	hsv(208, 69%, 69%)
CMYK	cmyk(68.6%, 32%, 0%, 31.4%)
CIE-LAB	lab(48.38, -1.98, -35.74)
CIE-LCH	lch(48.38, 35.79, 266.83°)
OKLab	oklab(55.35% -0.0415 -0.1011)
OKLCH	oklch(55.35% 0.109 247.7)
XYZ	xyz(15.9073, 17.0993, 43.0113)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777AF #AF6F37

analogous

#37AFAB #3777AF #373BAF

triadic

#3777AF #AF3777 #77AF37

tetradic

#3777AF #AB37AF #AF6F37 #3BAF37

square

#3777AF #AB37AF #AF6F37 #3BAF37

split-complementary

#3777AF #AF373B #AFAB37

monochromatic

#1A3852 #285780 #3777AF #5995CB #87B3D9

Accessibility & contrast

On white

4.75

#3777AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3777AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3777AF

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777AF	#FFFFFF	#000000	##FFFFFF
##3777AF	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E79B1

Deuteranopia (green-blind)

#4D6EAE

Tritanopia (blue-blind)

#00848B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3777af;
/* rgb */ color: rgb(55, 119, 175);
/* oklch */ color: oklch(55.3% 0.109 247.7);

Tailwind

colors: {
  custom: {
    50: '#7b9ec7',
    500: '#3777af',
    950: '#000000',
  },
}

SCSS

$custom: #3777af;
$custom-light: #7b9ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3777af",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 175
  },
  "hsl": {
    "h": 208,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.55347,
    "c": 0.10934,
    "h": 247.7
  },
  "luminance": 0.17101
}

Semantic roles & 50–950 ramp

primary

#3777AF

secondary

#C39F7F

accent

#8F4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3777AF

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

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