#3770AF#3770AF

#3770AF is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.7% C 0.116 H 252.8°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3770AF
RGB	rgb(55, 112, 175)
HSL	hsl(212, 52%, 45%)
HSV	hsv(212, 69%, 69%)
CMYK	cmyk(68.6%, 36%, 0%, 31.4%)
CIE-LAB	lab(46.30, 2.28, -39.02)
CIE-LCH	lch(46.30, 39.09, 273.34°)
OKLab	oklab(53.71% -0.0344 -0.1108)
OKLCH	oklch(53.71% 0.116 252.8)
XYZ	xyz(15.1047, 15.4941, 42.7438)
Luminance	0.1550 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3770AF #AF7637

analogous

#37ACAF #3770AF #3A37AF

triadic

#3770AF #AF3770 #70AF37

tetradic

#3770AF #AF37AC #AF7637 #37AF3A

square

#3770AF #AF37AC #AF7637 #37AF3A

split-complementary

#3770AF #AF3A37 #ACAF37

monochromatic

#1A3452 #285280 #3770AF #598FCB #87AED9

Accessibility & contrast

On white

5.12

#3770AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3770AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3770AF

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3770AF	#FFFFFF	#000000	##FFFFFF
##3770AF	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5474B2

Deuteranopia (green-blind)

#4369AE

Tritanopia (blue-blind)

#007F87

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3770af;
/* rgb */ color: rgb(55, 112, 175);
/* oklch */ color: oklch(53.7% 0.116 252.8);

Tailwind

colors: {
  custom: {
    50: '#7b98c7',
    500: '#3770af',
    950: '#000000',
  },
}

SCSS

$custom: #3770af;
$custom-light: #7b98c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3770af",
  "rgb": {
    "r": 55,
    "g": 112,
    "b": 175
  },
  "hsl": {
    "h": 211.5,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.53714,
    "c": 0.11603,
    "h": 252.8
  },
  "luminance": 0.15496
}

Semantic roles & 50–950 ramp

primary

#3770AF

secondary

#C3A37F

accent

#974CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3770AF

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

Preview Lab → · Contrast checker → · Palette generator →