#3771B2#3771B2

#3771B2 is a mid, moderate cyan. Relative luminance 0.158; OKLCH L 54.1% C 0.119 H 253.1°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3771B2
RGB	rgb(55, 113, 178)
HSL	hsl(212, 53%, 46%)
HSV	hsv(212, 69%, 70%)
CMYK	cmyk(69.1%, 36.5%, 0%, 30.2%)
CIE-LAB	lab(46.76, 2.74, -40.05)
CIE-LCH	lch(46.76, 40.15, 273.92°)
OKLab	oklab(54.12% -0.0346 -0.1138)
OKLCH	oklch(54.12% 0.119 253.1)
XYZ	xyz(15.5136, 15.8352, 44.3498)
Luminance	0.1584 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3771B2 #B27837

analogous

#37AEB2 #3771B2 #3A37B2

triadic

#3771B2 #B23771 #71B237

tetradic

#3771B2 #B237AE #B27837 #37B23A

square

#3771B2 #B237AE #B27837 #37B23A

split-complementary

#3771B2 #B23A37 #AEB237

monochromatic

#1A3654 #295383 #3771B2 #5A90CC #89AFDB

Accessibility & contrast

On white

5.04

#3771B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#3771B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771B2

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3771B2	#FFFFFF	#000000	##FFFFFF
##3771B2	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5475B5

Deuteranopia (green-blind)

#426AB1

Tritanopia (blue-blind)

#008089

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3771b2;
/* rgb */ color: rgb(55, 113, 178);
/* oklch */ color: oklch(54.1% 0.119 253.1);

Tailwind

colors: {
  custom: {
    50: '#7c99c9',
    500: '#3771b2',
    950: '#000000',
  },
}

SCSS

$custom: #3771b2;
$custom-light: #7c99c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3771b2",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 178
  },
  "hsl": {
    "h": 211.707,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.54121,
    "c": 0.11895,
    "h": 253.1
  },
  "luminance": 0.15837
}

Semantic roles & 50–950 ramp

primary

#3771B2

secondary

#C5A480

accent

#984CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3771B2

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

Preview Lab → · Contrast checker → · Palette generator →