#337CC8#337CC8

#337CC8 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.138 H 252.2°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#337CC8
RGB	rgb(51, 124, 200)
HSL	hsl(211, 59%, 49%)
HSV	hsv(211, 75%, 78%)
CMYK	cmyk(74.5%, 38%, 0%, 21.6%)
CIE-LAB	lab(51.02, 3.44, -45.97)
CIE-LCH	lch(51.02, 46.10, 274.28°)
OKLab	oklab(57.8% -0.0421 -0.131)
OKLCH	oklch(57.8% 0.138 252.2)
XYZ	xyz(18.9943, 19.2871, 57.3541)
Luminance	0.1929 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CC8 #C87F33

analogous

#33C7C8 #337CC8 #3433C8

triadic

#337CC8 #C8337C #7CC833

tetradic

#337CC8 #C833C7 #C87F33 #33C834

square

#337CC8 #C833C7 #C87F33 #33C834

split-complementary

#337CC8 #C83433 #C7C833

monochromatic

#1A4066 #275E97 #337CC8 #619BD7 #92BAE3

Accessibility & contrast

On white

4.32

#337CC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#337CC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CC8

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CC8	#FFFFFF	#000000	##000000
##337CC8	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5981CB

Deuteranopia (green-blind)

#4273C6

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337cc8;
/* rgb */ color: rgb(51, 124, 200);
/* oklch */ color: oklch(57.8% 0.138 252.2);

Tailwind

colors: {
  custom: {
    50: '#7ea1d9',
    500: '#337cc8',
    950: '#000000',
  },
}

SCSS

$custom: #337cc8;
$custom-light: #7ea1d9;
$custom-dark: #000000;

JSON

{
  "hex": "#337cc8",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 200
  },
  "hsl": {
    "h": 210.604,
    "s": 59.363,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57802,
    "c": 0.13763,
    "h": 252.2
  },
  "luminance": 0.19289
}

Semantic roles & 50–950 ramp

primary

#337CC8

secondary

#CEAC89

accent

#9545E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #337CC8

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

Preview Lab → · Contrast checker → · Palette generator →