#377CC2#377CC2

#377CC2 is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.6% C 0.129 H 251.3°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#377CC2
RGB	rgb(55, 124, 194)
HSL	hsl(210, 56%, 49%)
HSV	hsv(210, 72%, 76%)
CMYK	cmyk(71.6%, 36.1%, 0%, 23.9%)
CIE-LAB	lab(50.83, 1.80, -42.84)
CIE-LCH	lch(50.83, 42.88, 272.41°)
OKLab	oklab(57.58% -0.0412 -0.1218)
OKLCH	oklch(57.58% 0.129 251.3)
XYZ	xyz(18.5172, 19.1205, 53.7432)
Luminance	0.1912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CC2 #C27D37

analogous

#37C2C2 #377CC2 #3837C2

triadic

#377CC2 #C2377C #7CC237

tetradic

#377CC2 #C237C2 #C27D37 #37C238

square

#377CC2 #C237C2 #C27D37 #37C238

split-complementary

#377CC2 #C23837 #C2C237

monochromatic

#1C3F63 #295E92 #377CC2 #639BD3 #93B9E0

Accessibility & contrast

On white

4.35

#377CC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#377CC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CC2

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CC2	#FFFFFF	#000000	##000000
##377CC2	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C80C5

Deuteranopia (green-blind)

#4873C1

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #377cc2;
/* rgb */ color: rgb(55, 124, 194);
/* oklch */ color: oklch(57.6% 0.129 251.3);

Tailwind

colors: {
  custom: {
    50: '#7fa1d5',
    500: '#377cc2',
    950: '#000000',
  },
}

SCSS

$custom: #377cc2;
$custom-light: #7fa1d5;
$custom-dark: #000000;

JSON

{
  "hex": "#377cc2",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 194
  },
  "hsl": {
    "h": 210.216,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57582,
    "c": 0.12858,
    "h": 251.3
  },
  "luminance": 0.19123
}

Semantic roles & 50–950 ramp

primary

#377CC2

secondary

#CBAB89

accent

#9449DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377CC2

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

Preview Lab → · Contrast checker → · Palette generator →