#377CCA#377CCA

#377CCA is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.139 H 253.6°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#377CCA
RGB	rgb(55, 124, 202)
HSL	hsl(212, 58%, 50%)
HSV	hsv(212, 73%, 79%)
CMYK	cmyk(72.8%, 38.6%, 0%, 20.8%)
CIE-LAB	lab(51.26, 4.70, -46.73)
CIE-LCH	lch(51.26, 46.96, 275.74°)
OKLab	oklab(58.06% -0.0391 -0.1332)
OKLCH	oklch(58.06% 0.139 253.6)
XYZ	xyz(19.4399, 19.4896, 58.6030)
Luminance	0.1949 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CCA #CA8537

analogous

#37C5CA #377CCA #3B37CA

triadic

#377CCA #CA377C #7CCA37

tetradic

#377CCA #CA37C5 #CA8537 #37CA3B

square

#377CCA #CA37C5 #CA8537 #37CA3B

split-complementary

#377CCA #CA3B37 #C5CA37

monochromatic

#1C416A #295E9B #377CCA #679CD7 #98BBE4

Accessibility & contrast

On white

4.29

#377CCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#377CCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CCA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CCA	#FFFFFF	#000000	##000000
##377CCA	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5882CD

Deuteranopia (green-blind)

#4174C8

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377cca;
/* rgb */ color: rgb(55, 124, 202);
/* oklch */ color: oklch(58.1% 0.139 253.6);

Tailwind

colors: {
  custom: {
    50: '#80a1da',
    500: '#377cca',
    950: '#000000',
  },
}

SCSS

$custom: #377cca;
$custom-light: #80a1da;
$custom-dark: #000000;

JSON

{
  "hex": "#377cca",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 202
  },
  "hsl": {
    "h": 211.837,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.58055,
    "c": 0.13884,
    "h": 253.6
  },
  "luminance": 0.19492
}

Semantic roles & 50–950 ramp

primary

#377CCA

secondary

#CFB08E

accent

#9946E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #377CCA

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

Preview Lab → · Contrast checker → · Palette generator →