#377A8A#377A8A

#377A8A is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.3% C 0.072 H 215.7°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#377A8A
RGB	rgb(55, 122, 138)
HSL	hsl(192, 43%, 38%)
HSV	hsv(192, 60%, 54%)
CMYK	cmyk(60.1%, 11.6%, 0%, 45.9%)
CIE-LAB	lab(47.71, -16.19, -15.10)
CIE-LCH	lch(47.71, 22.14, 223.01°)
OKLab	oklab(54.28% -0.0582 -0.0419)
OKLCH	oklch(54.28% 0.072 215.7)
XYZ	xyz(13.1207, 16.5650, 26.5457)
Luminance	0.1657 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377A8A #8A4737

analogous

#378A70 #377A8A #37518A

triadic

#377A8A #8A377A #7A8A37

tetradic

#377A8A #70378A #8A4737 #518A37

square

#377A8A #70378A #8A4737 #518A37

split-complementary

#377A8A #8A3751 #8A7037

monochromatic

#142D32 #26535E #377A8A #48A1B6 #74B7C8

Accessibility & contrast

On white

4.87

#377A8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#377A8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #377A8A

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377A8A	#FFFFFF	#000000	##FFFFFF
##377A8A	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F768B

Deuteranopia (green-blind)

#636D8A

Tritanopia (blue-blind)

#00807F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #377a8a;
/* rgb */ color: rgb(55, 122, 138);
/* oklch */ color: oklch(54.3% 0.072 215.7);

Tailwind

colors: {
  custom: {
    50: '#76a0ac',
    500: '#377a8a',
    950: '#000000',
  },
}

SCSS

$custom: #377a8a;
$custom-light: #76a0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#377a8a",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 138
  },
  "hsl": {
    "h": 191.566,
    "s": 43.005,
    "l": 37.843
  },
  "oklch": {
    "l": 0.54282,
    "c": 0.07172,
    "h": 215.7
  },
  "luminance": 0.16566
}

Semantic roles & 50–950 ramp

primary

#377A8A

secondary

#B07A6D

accent

#6D55D3

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #377A8A

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

Preview Lab → · Contrast checker → · Palette generator →