#377CBA#377CBA

#377CBA is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.118 H 248.5°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#377CBA
RGB	rgb(55, 124, 186)
HSL	hsl(208, 54%, 47%)
HSV	hsv(208, 70%, 73%)
CMYK	cmyk(70.4%, 33.3%, 0%, 27.1%)
CIE-LAB	lab(50.42, -1.06, -38.89)
CIE-LCH	lch(50.42, 38.91, 268.43°)
OKLab	oklab(57.13% -0.0433 -0.1103)
OKLCH	oklch(57.13% 0.119 248.5)
XYZ	xyz(17.6428, 18.7708, 49.1382)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CBA #BA7537

analogous

#37BAB7 #377CBA #373ABA

triadic

#377CBA #BA377C #7CBA37

tetradic

#377CBA #B737BA #BA7537 #3ABA37

square

#377CBA #B737BA #BA7537 #3ABA37

split-complementary

#377CBA #BA373A #BAB737

monochromatic

#1B3D5C #295D8B #377CBA #5F9AD0 #8EB8DE

Accessibility & contrast

On white

4.42

#377CBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#377CBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CBA

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CBA	#FFFFFF	#000000	##000000
##377CBA	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBD

Deuteranopia (green-blind)

#4E72B9

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377cba;
/* rgb */ color: rgb(55, 124, 186);
/* oklch */ color: oklch(57.1% 0.118 248.5);

Tailwind

colors: {
  custom: {
    50: '#7da1cf',
    500: '#377cba',
    950: '#000000',
  },
}

SCSS

$custom: #377cba;
$custom-light: #7da1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#377cba",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 186
  },
  "hsl": {
    "h": 208.397,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57126,
    "c": 0.1185,
    "h": 248.5
  },
  "luminance": 0.18773
}

Semantic roles & 50–950 ramp

primary

#377CBA

secondary

#C8A585

accent

#904ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #377CBA

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

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