#3771B6#3771B6

#3771B6 is a mid, vivid cyan. Relative luminance 0.160; OKLCH L 54.4% C 0.124 H 254.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3771B6
RGB	rgb(55, 113, 182)
HSL	hsl(213, 54%, 46%)
HSV	hsv(213, 70%, 71%)
CMYK	cmyk(69.8%, 37.9%, 0%, 28.6%)
CIE-LAB	lab(46.97, 4.19, -42.04)
CIE-LCH	lch(46.97, 42.24, 275.69°)
OKLab	oklab(54.36% -0.0336 -0.1196)
OKLCH	oklch(54.36% 0.124 254.3)
XYZ	xyz(15.9211, 15.9982, 46.4958)
Luminance	0.1600 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3771B6 #B67C37

analogous

#37B1B6 #3771B6 #3D37B6

triadic

#3771B6 #B63771 #71B637

tetradic

#3771B6 #B637B1 #B67C37 #37B63D

square

#3771B6 #B637B1 #B67C37 #37B63D

split-complementary

#3771B6 #B63D37 #B1B637

monochromatic

#1B3758 #295487 #3771B6 #5C90CE #8BB0DC

Accessibility & contrast

On white

5.00

#3771B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#3771B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771B6

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3771B6	#FFFFFF	#000000	##FFFFFF
##3771B6	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5276B9

Deuteranopia (green-blind)

#3F6AB5

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3771b6;
/* rgb */ color: rgb(55, 113, 182);
/* oklch */ color: oklch(54.4% 0.124 254.3);

Tailwind

colors: {
  custom: {
    50: '#7c99cc',
    500: '#3771b6',
    950: '#000000',
  },
}

SCSS

$custom: #3771b6;
$custom-light: #7c99cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3771b6",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 182
  },
  "hsl": {
    "h": 212.598,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54359,
    "c": 0.12424,
    "h": 254.3
  },
  "luminance": 0.16
}

Semantic roles & 50–950 ramp

primary

#3771B6

secondary

#C6A782

accent

#9A4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3771B6

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

Preview Lab → · Contrast checker → · Palette generator →