#377CA0#377CA0

#377CA0 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.8% C 0.089 H 234.3°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#377CA0
RGB	rgb(55, 124, 160)
HSL	hsl(201, 49%, 42%)
HSV	hsv(201, 66%, 63%)
CMYK	cmyk(65.6%, 22.5%, 0%, 37.3%)
CIE-LAB	lab(49.21, -10.12, -25.72)
CIE-LCH	lch(49.21, 27.64, 248.53°)
OKLab	oklab(55.77% -0.0518 -0.0721)
OKLCH	oklch(55.77% 0.089 234.3)
XYZ	xyz(15.1259, 17.7640, 35.8825)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CA0 #A05B37

analogous

#37A08F #377CA0 #3748A0

triadic

#377CA0 #A0377C #7CA037

tetradic

#377CA0 #8F37A0 #A05B37 #48A037

square

#377CA0 #8F37A0 #A05B37 #48A037

split-complementary

#377CA0 #A03748 #A08F37

monochromatic

#183545 #275972 #377CA0 #519CC3 #7FB6D3

Accessibility & contrast

On white

4.61

#377CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#377CA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377CA0

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CA0	#FFFFFF	#000000	##FFFFFF
##377CA0	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA2

Deuteranopia (green-blind)

#5C709F

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377ca0;
/* rgb */ color: rgb(55, 124, 160);
/* oklch */ color: oklch(55.8% 0.089 234.3);

Tailwind

colors: {
  custom: {
    50: '#79a1bc',
    500: '#377ca0',
    950: '#000000',
  },
}

SCSS

$custom: #377ca0;
$custom-light: #79a1bc;
$custom-dark: #000000;

JSON

{
  "hex": "#377ca0",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 160
  },
  "hsl": {
    "h": 200.571,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.55772,
    "c": 0.08878,
    "h": 234.3
  },
  "luminance": 0.17766
}

Semantic roles & 50–950 ramp

primary

#377CA0

secondary

#BC8E77

accent

#7E4FD8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377CA0

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

Preview Lab → · Contrast checker → · Palette generator →