#3777AC#3777AC

#3777AC is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.2% C 0.106 H 246.3°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3777AC
RGB	rgb(55, 119, 172)
HSL	hsl(207, 52%, 45%)
HSV	hsv(207, 68%, 67%)
CMYK	cmyk(68%, 30.8%, 0%, 32.5%)
CIE-LAB	lab(48.24, -3.04, -34.23)
CIE-LCH	lch(48.24, 34.36, 264.93°)
OKLab	oklab(55.18% -0.0424 -0.0967)
OKLCH	oklch(55.18% 0.106 246.3)
XYZ	xyz(15.6160, 16.9828, 41.4768)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777AC #AC6C37

analogous

#37ACA6 #3777AC #373DAC

triadic

#3777AC #AC3777 #77AC37

tetradic

#3777AC #A637AC #AC6C37 #3DAC37

square

#3777AC #A637AC #AC6C37 #3DAC37

split-complementary

#3777AC #AC373D #ACA637

monochromatic

#19374F #28577E #3777AC #5795C9 #85B3D8

Accessibility & contrast

On white

4.78

#3777AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3777AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3777AC

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777AC	#FFFFFF	#000000	##FFFFFF
##3777AC	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F79AE

Deuteranopia (green-blind)

#4F6DAB

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3777ac;
/* rgb */ color: rgb(55, 119, 172);
/* oklch */ color: oklch(55.2% 0.106 246.3);

Tailwind

colors: {
  custom: {
    50: '#7b9ec5',
    500: '#3777ac',
    950: '#000000',
  },
}

SCSS

$custom: #3777ac;
$custom-light: #7b9ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3777ac",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 172
  },
  "hsl": {
    "h": 207.179,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55184,
    "c": 0.10564,
    "h": 246.3
  },
  "luminance": 0.16984
}

Semantic roles & 50–950 ramp

primary

#3777AC

secondary

#C29C7D

accent

#8D4DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3777AC

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

Preview Lab → · Contrast checker → · Palette generator →