#377CA4#377CA4

#377CA4 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.093 H 237.2°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#377CA4
RGB	rgb(55, 124, 164)
HSL	hsl(202, 50%, 43%)
HSV	hsv(202, 66%, 64%)
CMYK	cmyk(66.5%, 24.4%, 0%, 35.7%)
CIE-LAB	lab(49.38, -8.76, -27.78)
CIE-LCH	lch(49.38, 29.13, 252.50°)
OKLab	oklab(55.97% -0.0504 -0.078)
OKLCH	oklch(55.97% 0.093 237.2)
XYZ	xyz(15.4815, 17.9063, 37.7551)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CA4 #A45F37

analogous

#37A495 #377CA4 #3746A4

triadic

#377CA4 #A4377C #7CA437

tetradic

#377CA4 #9537A4 #A45F37 #46A437

square

#377CA4 #9537A4 #A45F37 #46A437

split-complementary

#377CA4 #A43746 #A49537

monochromatic

#183748 #285976 #377CA4 #539BC5 #81B6D5

Accessibility & contrast

On white

4.58

#377CA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#377CA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CA4

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CA4	#FFFFFF	#000000	##000000
##377CA4	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697BA6

Deuteranopia (green-blind)

#5A71A3

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377ca4;
/* rgb */ color: rgb(55, 124, 164);
/* oklch */ color: oklch(56.0% 0.093 237.2);

Tailwind

colors: {
  custom: {
    50: '#7aa1bf',
    500: '#377ca4',
    950: '#000000',
  },
}

SCSS

$custom: #377ca4;
$custom-light: #7aa1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#377ca4",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 164
  },
  "hsl": {
    "h": 202.018,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.55967,
    "c": 0.09288,
    "h": 237.2
  },
  "luminance": 0.17908
}

Semantic roles & 50–950 ramp

primary

#377CA4

secondary

#BE9279

accent

#814FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377CA4

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

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