#3770AC#3770AC

#3770AC is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.5% C 0.112 H 251.7°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3770AC
RGB	rgb(55, 112, 172)
HSL	hsl(211, 52%, 45%)
HSV	hsv(211, 68%, 67%)
CMYK	cmyk(68%, 34.9%, 0%, 32.5%)
CIE-LAB	lab(46.15, 1.20, -37.52)
CIE-LCH	lch(46.15, 37.54, 271.83°)
OKLab	oklab(53.54% -0.0352 -0.1064)
OKLCH	oklch(53.54% 0.112 251.7)
XYZ	xyz(14.8134, 15.3776, 41.2092)
Luminance	0.1538 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3770AC #AC7337

analogous

#37ABAC #3770AC #3837AC

triadic

#3770AC #AC3770 #70AC37

tetradic

#3770AC #AC37AB #AC7337 #37AC38

square

#3770AC #AC37AB #AC7337 #37AC38

split-complementary

#3770AC #AC3837 #ABAC37

monochromatic

#19344F #28527E #3770AC #578FC9 #85AED8

Accessibility & contrast

On white

5.15

#3770AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#3770AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3770AC

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3770AC	#FFFFFF	#000000	##FFFFFF
##3770AC	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5573AF

Deuteranopia (green-blind)

#4568AB

Tritanopia (blue-blind)

#007E86

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3770ac;
/* rgb */ color: rgb(55, 112, 172);
/* oklch */ color: oklch(53.5% 0.112 251.7);

Tailwind

colors: {
  custom: {
    50: '#7b98c5',
    500: '#3770ac',
    950: '#000000',
  },
}

SCSS

$custom: #3770ac;
$custom-light: #7b98c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3770ac",
  "rgb": {
    "r": 55,
    "g": 112,
    "b": 172
  },
  "hsl": {
    "h": 210.769,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5354,
    "c": 0.11208,
    "h": 251.7
  },
  "luminance": 0.15379
}

Semantic roles & 50–950 ramp

primary

#3770AC

secondary

#C2A07D

accent

#964DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3770AC

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

Preview Lab → · Contrast checker → · Palette generator →