#377C8D#377C8D

#377C8D is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 54.9% C 0.074 H 216.4°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#377C8D
RGB	rgb(55, 124, 141)
HSL	hsl(192, 44%, 38%)
HSV	hsv(192, 61%, 55%)
CMYK	cmyk(61%, 12.1%, 0%, 44.7%)
CIE-LAB	lab(48.45, -16.34, -15.74)
CIE-LCH	lch(48.45, 22.69, 223.93°)
OKLab	oklab(54.91% -0.0593 -0.0437)
OKLCH	oklch(54.91% 0.074 216.4)
XYZ	xyz(13.5890, 17.1493, 27.7881)
Luminance	0.1715 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377C8D #8D4837

analogous

#378D73 #377C8D #37518D

triadic

#377C8D #8D377C #7C8D37

tetradic

#377C8D #73378D #8D4837 #518D37

square

#377C8D #73378D #8D4837 #518D37

split-complementary

#377C8D #8D3751 #8D7337

monochromatic

#152F35 #265561 #377C8D #49A2B8 #75B9C9

Accessibility & contrast

On white

4.74

#377C8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#377C8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #377C8D

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377C8D	#FFFFFF	#000000	##FFFFFF
##377C8D	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70788E

Deuteranopia (green-blind)

#646F8D

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #377c8d;
/* rgb */ color: rgb(55, 124, 141);
/* oklch */ color: oklch(54.9% 0.074 216.4);

Tailwind

colors: {
  custom: {
    50: '#77a2ae',
    500: '#377c8d',
    950: '#000000',
  },
}

SCSS

$custom: #377c8d;
$custom-light: #77a2ae;
$custom-dark: #000000;

JSON

{
  "hex": "#377c8d",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 141
  },
  "hsl": {
    "h": 191.86,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.54912,
    "c": 0.07363,
    "h": 216.4
  },
  "luminance": 0.17151
}

Semantic roles & 50–950 ramp

primary

#377C8D

secondary

#B27B6E

accent

#6D54D4

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #377C8D

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

Preview Lab → · Contrast checker → · Palette generator →