#377FA3#377FA3

#377FA3 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.6% C 0.090 H 233.3°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#377FA3
RGB	rgb(55, 127, 163)
HSL	hsl(200, 50%, 43%)
HSV	hsv(200, 66%, 64%)
CMYK	cmyk(66.3%, 22.1%, 0%, 36.1%)
CIE-LAB	lab(50.26, -10.82, -25.84)
CIE-LCH	lch(50.26, 28.02, 247.28°)
OKLab	oklab(56.65% -0.054 -0.0724)
OKLCH	oklch(56.65% 0.09 233.3)
XYZ	xyz(15.7732, 18.6337, 37.4086)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FA3 #A35B37

analogous

#37A391 #377FA3 #3749A3

triadic

#377FA3 #A3377F #7FA337

tetradic

#377FA3 #9137A3 #A35B37 #49A337

square

#377FA3 #9137A3 #A35B37 #49A337

split-complementary

#377FA3 #A33749 #A39137

monochromatic

#183847 #285B75 #377FA3 #529FC5 #80B8D4

Accessibility & contrast

On white

4.44

#377FA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#377FA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FA3

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FA3	#FFFFFF	#000000	##000000
##377FA3	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)

#6D7EA5

Deuteranopia (green-blind)

#5F73A2

Tritanopia (blue-blind)

#00898B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377fa3;
/* rgb */ color: rgb(55, 127, 163);
/* oklch */ color: oklch(56.6% 0.090 233.3);

Tailwind

colors: {
  custom: {
    50: '#7aa4be',
    500: '#377fa3',
    950: '#000000',
  },
}

SCSS

$custom: #377fa3;
$custom-light: #7aa4be;
$custom-dark: #000000;

JSON

{
  "hex": "#377fa3",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 163
  },
  "hsl": {
    "h": 200,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.56647,
    "c": 0.09033,
    "h": 233.3
  },
  "luminance": 0.18635
}

Semantic roles & 50–950 ramp

primary

#377FA3

secondary

#BE8F78

accent

#7D4FD9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377FA3

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

Preview Lab → · Contrast checker → · Palette generator →