#377AA0#377AA0

#377AA0 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.090 H 236.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#377AA0
RGB	rgb(55, 122, 160)
HSL	hsl(202, 49%, 42%)
HSV	hsv(202, 66%, 63%)
CMYK	cmyk(65.6%, 23.7%, 0%, 37.3%)
CIE-LAB	lab(48.60, -8.96, -26.67)
CIE-LCH	lch(48.60, 28.13, 251.42°)
OKLab	oklab(55.29% -0.0496 -0.0748)
OKLCH	oklch(55.29% 0.09 236.5)
XYZ	xyz(14.8778, 17.2678, 35.7998)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AA0 #A05D37

analogous

#37A091 #377AA0 #3746A0

triadic

#377AA0 #A0377A #7AA037

tetradic

#377AA0 #9137A0 #A05D37 #46A037

square

#377AA0 #9137A0 #A05D37 #46A037

split-complementary

#377AA0 #A03746 #A09137

monochromatic

#183545 #275772 #377AA0 #519AC3 #7FB4D3

Accessibility & contrast

On white

4.72

#377AA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#377AA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #377AA0

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AA0	#FFFFFF	#000000	##FFFFFF
##377AA0	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6879A2

Deuteranopia (green-blind)

#5A6F9F

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #377aa0;
/* rgb */ color: rgb(55, 122, 160);
/* oklch */ color: oklch(55.3% 0.090 236.5);

Tailwind

colors: {
  custom: {
    50: '#79a0bc',
    500: '#377aa0',
    950: '#000000',
  },
}

SCSS

$custom: #377aa0;
$custom-light: #79a0bc;
$custom-dark: #000000;

JSON

{
  "hex": "#377aa0",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 160
  },
  "hsl": {
    "h": 201.714,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.55285,
    "c": 0.0898,
    "h": 236.5
  },
  "luminance": 0.17269
}

Semantic roles & 50–950 ramp

primary

#377AA0

secondary

#BC9077

accent

#814FD8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #377AA0

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

Preview Lab → · Contrast checker → · Palette generator →