#337EC8#337EC8

#337EC8 is a mid, vivid cyan. Relative luminance 0.198; OKLCH L 58.3% C 0.136 H 251.1°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#337EC8
RGB	rgb(51, 126, 200)
HSL	hsl(210, 59%, 49%)
HSV	hsv(210, 75%, 78%)
CMYK	cmyk(74.5%, 37%, 0%, 21.6%)
CIE-LAB	lab(51.60, 2.23, -45.04)
CIE-LCH	lch(51.60, 45.10, 272.83°)
OKLab	oklab(58.26% -0.0439 -0.1283)
OKLCH	oklch(58.26% 0.136 251.1)
XYZ	xyz(19.2475, 19.7934, 57.4385)
Luminance	0.1980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EC8 #C87D33

analogous

#33C8C8 #337EC8 #3333C8

triadic

#337EC8 #C8337E #7EC833

tetradic

#337EC8 #C833C8 #C87D33 #33C833

square

#337EC8 #C833C8 #C87D33 #33C833

split-complementary

#337EC8 #C83333 #C8C833

monochromatic

#1A4166 #275F97 #337EC8 #619CD7 #92BBE3

Accessibility & contrast

On white

4.23

#337EC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#337EC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EC8

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EC8	#FFFFFF	#000000	##000000
##337EC8	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C83CB

Deuteranopia (green-blind)

#4575C7

Tritanopia (blue-blind)

#009099

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #337ec8;
/* rgb */ color: rgb(51, 126, 200);
/* oklch */ color: oklch(58.3% 0.136 251.1);

Tailwind

colors: {
  custom: {
    50: '#7ea2d9',
    500: '#337ec8',
    950: '#000000',
  },
}

SCSS

$custom: #337ec8;
$custom-light: #7ea2d9;
$custom-dark: #000000;

JSON

{
  "hex": "#337ec8",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 200
  },
  "hsl": {
    "h": 209.799,
    "s": 59.363,
    "l": 49.216
  },
  "oklch": {
    "l": 0.58257,
    "c": 0.1356,
    "h": 251.1
  },
  "luminance": 0.19796
}

Semantic roles & 50–950 ramp

primary

#337EC8

secondary

#CEAB89

accent

#9345E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #337EC8

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

Preview Lab → · Contrast checker → · Palette generator →