#377DA4#377DA4

#377DA4 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.2% C 0.092 H 236.1°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#377DA4
RGB	rgb(55, 125, 164)
HSL	hsl(201, 50%, 43%)
HSV	hsv(201, 66%, 64%)
CMYK	cmyk(66.5%, 23.8%, 0%, 35.7%)
CIE-LAB	lab(49.69, -9.34, -27.31)
CIE-LCH	lch(49.69, 28.86, 251.13°)
OKLab	oklab(56.21% -0.0514 -0.0767)
OKLCH	oklch(56.21% 0.092 236.1)
XYZ	xyz(15.6074, 18.1582, 37.7971)
Luminance	0.1816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DA4 #A45E37

analogous

#37A494 #377DA4 #3746A4

triadic

#377DA4 #A4377D #7DA437

tetradic

#377DA4 #9437A4 #A45E37 #46A437

square

#377DA4 #9437A4 #A45E37 #46A437

split-complementary

#377DA4 #A43746 #A49437

monochromatic

#183748 #285A76 #377DA4 #539CC5 #81B7D5

Accessibility & contrast

On white

4.53

#377DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#377DA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DA4

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DA4	#FFFFFF	#000000	##000000
##377DA4	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA6

Deuteranopia (green-blind)

#5C71A3

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377da4;
/* rgb */ color: rgb(55, 125, 164);
/* oklch */ color: oklch(56.2% 0.092 236.1);

Tailwind

colors: {
  custom: {
    50: '#7aa2bf',
    500: '#377da4',
    950: '#000000',
  },
}

SCSS

$custom: #377da4;
$custom-light: #7aa2bf;
$custom-dark: #000000;

JSON

{
  "hex": "#377da4",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 164
  },
  "hsl": {
    "h": 201.468,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5621,
    "c": 0.09232,
    "h": 236.1
  },
  "luminance": 0.1816
}

Semantic roles & 50–950 ramp

primary

#377DA4

secondary

#BE9279

accent

#804FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DA4

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

Preview Lab → · Contrast checker → · Palette generator →