#377EA0#377EA0

#377EA0 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.3% C 0.088 H 232.1°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#377EA0
RGB	rgb(55, 126, 160)
HSL	hsl(199, 49%, 42%)
HSV	hsv(199, 66%, 63%)
CMYK	cmyk(65.6%, 21.2%, 0%, 37.3%)
CIE-LAB	lab(49.82, -11.26, -24.77)
CIE-LCH	lch(49.82, 27.21, 245.55°)
OKLab	oklab(56.26% -0.054 -0.0694)
OKLCH	oklch(56.26% 0.088 232.1)
XYZ	xyz(15.3791, 18.2704, 35.9669)
Luminance	0.1827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EA0 #A05937

analogous

#37A08E #377EA0 #3749A0

triadic

#377EA0 #A0377E #7EA037

tetradic

#377EA0 #8E37A0 #A05937 #49A037

square

#377EA0 #8E37A0 #A05937 #49A037

split-complementary

#377EA0 #A03749 #A08E37

monochromatic

#183645 #275A72 #377EA0 #519EC3 #7FB8D3

Accessibility & contrast

On white

4.51

#377EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#377EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EA0

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EA0	#FFFFFF	#000000	##000000
##377EA0	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7CA2

Deuteranopia (green-blind)

#5F729F

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377ea0;
/* rgb */ color: rgb(55, 126, 160);
/* oklch */ color: oklch(56.3% 0.088 232.1);

Tailwind

colors: {
  custom: {
    50: '#79a3bc',
    500: '#377ea0',
    950: '#000000',
  },
}

SCSS

$custom: #377ea0;
$custom-light: #79a3bc;
$custom-dark: #000000;

JSON

{
  "hex": "#377ea0",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 160
  },
  "hsl": {
    "h": 199.429,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.5626,
    "c": 0.08789,
    "h": 232.1
  },
  "luminance": 0.18272
}

Semantic roles & 50–950 ramp

primary

#377EA0

secondary

#BC8D77

accent

#7C4FD8

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377EA0

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

Preview Lab → · Contrast checker → · Palette generator →