#377FA4#377FA4

#377FA4 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.7% C 0.091 H 234.1°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#377FA4
RGB	rgb(55, 127, 164)
HSL	hsl(200, 50%, 43%)
HSV	hsv(200, 66%, 64%)
CMYK	cmyk(66.5%, 22.6%, 0%, 35.7%)
CIE-LAB	lab(50.30, -10.48, -26.36)
CIE-LCH	lch(50.30, 28.37, 248.31°)
OKLab	oklab(56.69% -0.0536 -0.0739)
OKLCH	oklch(56.69% 0.091 234.1)
XYZ	xyz(15.8631, 18.6696, 37.8824)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FA4 #A45C37

analogous

#37A492 #377FA4 #3748A4

triadic

#377FA4 #A4377F #7FA437

tetradic

#377FA4 #9237A4 #A45C37 #48A437

square

#377FA4 #9237A4 #A45C37 #48A437

split-complementary

#377FA4 #A43748 #A49237

monochromatic

#183848 #285C76 #377FA4 #539EC5 #81B8D5

Accessibility & contrast

On white

4.44

#377FA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#377FA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FA4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FA4	#FFFFFF	#000000	##000000
##377FA4	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7EA6

Deuteranopia (green-blind)

#5E73A3

Tritanopia (blue-blind)

#00898B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377fa4;
/* rgb */ color: rgb(55, 127, 164);
/* oklch */ color: oklch(56.7% 0.091 234.1);

Tailwind

colors: {
  custom: {
    50: '#7aa4bf',
    500: '#377fa4',
    950: '#000000',
  },
}

SCSS

$custom: #377fa4;
$custom-light: #7aa4bf;
$custom-dark: #000000;

JSON

{
  "hex": "#377fa4",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 164
  },
  "hsl": {
    "h": 200.367,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56695,
    "c": 0.0913,
    "h": 234.1
  },
  "luminance": 0.18671
}

Semantic roles & 50–950 ramp

primary

#377FA4

secondary

#BE9079

accent

#7E4FD9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377FA4

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

Preview Lab → · Contrast checker → · Palette generator →