#377AC8#377AC8

#377AC8 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.5% C 0.138 H 254.1°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#377AC8
RGB	rgb(55, 122, 200)
HSL	hsl(212, 57%, 50%)
HSV	hsv(212, 73%, 78%)
CMYK	cmyk(72.5%, 39%, 0%, 21.6%)
CIE-LAB	lab(50.57, 5.19, -46.68)
CIE-LCH	lch(50.57, 46.97, 276.35°)
OKLab	oklab(57.48% -0.0378 -0.1331)
OKLCH	oklch(57.48% 0.138 254.1)
XYZ	xyz(18.9565, 18.8993, 57.2813)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AC8 #C88537

analogous

#37C2C8 #377AC8 #3D37C8

triadic

#377AC8 #C8377A #7AC837

tetradic

#377AC8 #C837C2 #C88537 #37C83D

square

#377AC8 #C837C2 #C88537 #37C83D

split-complementary

#377AC8 #C83D37 #C2C837

monochromatic

#1D3F68 #2A5D98 #377AC8 #679AD5 #97BAE2

Accessibility & contrast

On white

4.39

#377AC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#377AC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC8

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AC8	#FFFFFF	#000000	##000000
##377AC8	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5680CB

Deuteranopia (green-blind)

#3F72C6

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377ac8;
/* rgb */ color: rgb(55, 122, 200);
/* oklch */ color: oklch(57.5% 0.138 254.1);

Tailwind

colors: {
  custom: {
    50: '#80a0d9',
    500: '#377ac8',
    950: '#000000',
  },
}

SCSS

$custom: #377ac8;
$custom-light: #80a0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#377ac8",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 200
  },
  "hsl": {
    "h": 212.276,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.57484,
    "c": 0.13835,
    "h": 254.1
  },
  "luminance": 0.18901
}

Semantic roles & 50–950 ramp

primary

#377AC8

secondary

#CEB08D

accent

#9A48E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377AC8

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

Preview Lab → · Contrast checker → · Palette generator →