#377CB6#377CB6

#377CB6 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.9% C 0.114 H 246.9°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#377CB6
RGB	rgb(55, 124, 182)
HSL	hsl(207, 54%, 46%)
HSV	hsv(207, 70%, 71%)
CMYK	cmyk(69.8%, 31.9%, 0%, 28.6%)
CIE-LAB	lab(50.22, -2.49, -36.90)
CIE-LCH	lch(50.22, 36.99, 266.14°)
OKLab	oklab(56.9% -0.0445 -0.1045)
OKLCH	oklch(56.9% 0.114 246.9)
XYZ	xyz(17.2235, 18.6031, 46.9299)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CB6 #B67137

analogous

#37B6B1 #377CB6 #373DB6

triadic

#377CB6 #B6377C #7CB637

tetradic

#377CB6 #B137B6 #B67137 #3DB637

square

#377CB6 #B137B6 #B67137 #3DB637

split-complementary

#377CB6 #B6373D #B6B137

monochromatic

#1B3C58 #295C87 #377CB6 #5C9ACE #8BB7DC

Accessibility & contrast

On white

4.45

#377CB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#377CB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CB6

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CB6	#FFFFFF	#000000	##000000
##377CB6	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627EB9

Deuteranopia (green-blind)

#5072B5

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377cb6;
/* rgb */ color: rgb(55, 124, 182);
/* oklch */ color: oklch(56.9% 0.114 246.9);

Tailwind

colors: {
  custom: {
    50: '#7da1cc',
    500: '#377cb6',
    950: '#000000',
  },
}

SCSS

$custom: #377cb6;
$custom-light: #7da1cc;
$custom-dark: #000000;

JSON

{
  "hex": "#377cb6",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 182
  },
  "hsl": {
    "h": 207.402,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56905,
    "c": 0.11357,
    "h": 246.9
  },
  "luminance": 0.18605
}

Semantic roles & 50–950 ramp

primary

#377CB6

secondary

#C6A182

accent

#8E4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #377CB6

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

Preview Lab → · Contrast checker → · Palette generator →