#377DA1#377DA1

#377DA1 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.1% C 0.089 H 234.0°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#377DA1
RGB	rgb(55, 125, 161)
HSL	hsl(200, 49%, 42%)
HSV	hsv(200, 66%, 63%)
CMYK	cmyk(65.8%, 22.4%, 0%, 36.9%)
CIE-LAB	lab(49.56, -10.35, -25.76)
CIE-LCH	lch(49.56, 27.76, 248.11°)
OKLab	oklab(56.06% -0.0525 -0.0722)
OKLCH	oklch(56.06% 0.089 234)
XYZ	xyz(15.3397, 18.0511, 36.3871)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DA1 #A15B37

analogous

#37A190 #377DA1 #3748A1

triadic

#377DA1 #A1377D #7DA137

tetradic

#377DA1 #9037A1 #A15B37 #48A137

square

#377DA1 #9037A1 #A15B37 #48A137

split-complementary

#377DA1 #A13748 #A19037

monochromatic

#183646 #275A73 #377DA1 #519DC4 #7FB7D3

Accessibility & contrast

On white

4.55

#377DA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#377DA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DA1

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DA1	#FFFFFF	#000000	##000000
##377DA1	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA3

Deuteranopia (green-blind)

#5D71A0

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377da1;
/* rgb */ color: rgb(55, 125, 161);
/* oklch */ color: oklch(56.1% 0.089 234.0);

Tailwind

colors: {
  custom: {
    50: '#79a2bd',
    500: '#377da1',
    950: '#000000',
  },
}

SCSS

$custom: #377da1;
$custom-light: #79a2bd;
$custom-dark: #000000;

JSON

{
  "hex": "#377da1",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 161
  },
  "hsl": {
    "h": 200.377,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.56064,
    "c": 0.08929,
    "h": 234
  },
  "luminance": 0.18053
}

Semantic roles & 50–950 ramp

primary

#377DA1

secondary

#BD8F77

accent

#7E4FD9

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DA1

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

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