#337DC4#337DC4

#337DC4 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.8% C 0.132 H 250.4°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#337DC4
RGB	rgb(51, 125, 196)
HSL	hsl(209, 59%, 48%)
HSV	hsv(209, 74%, 77%)
CMYK	cmyk(74%, 36.2%, 0%, 23.1%)
CIE-LAB	lab(51.10, 1.37, -43.56)
CIE-LCH	lch(51.10, 43.58, 271.80°)
OKLab	oklab(57.79% -0.044 -0.124)
OKLCH	oklch(57.79% 0.132 250.4)
XYZ	xyz(18.6589, 19.3544, 54.9662)
Luminance	0.1936 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DC4 #C47A33

analogous

#33C4C2 #337DC4 #3335C4

triadic

#337DC4 #C4337D #7DC433

tetradic

#337DC4 #C233C4 #C47A33 #35C433

square

#337DC4 #C233C4 #C47A33 #35C433

split-complementary

#337DC4 #C43335 #C4C233

monochromatic

#1A3F63 #265E93 #337DC4 #5F9BD5 #8FBAE2

Accessibility & contrast

On white

4.31

#337DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#337DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DC4

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DC4	#FFFFFF	#000000	##000000
##337DC4	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C81C7

Deuteranopia (green-blind)

#4774C3

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337dc4;
/* rgb */ color: rgb(51, 125, 196);
/* oklch */ color: oklch(57.8% 0.132 250.4);

Tailwind

colors: {
  custom: {
    50: '#7ea2d6',
    500: '#337dc4',
    950: '#000000',
  },
}

SCSS

$custom: #337dc4;
$custom-light: #7ea2d6;
$custom-dark: #000000;

JSON

{
  "hex": "#337dc4",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 209.379,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.57793,
    "c": 0.13155,
    "h": 250.4
  },
  "luminance": 0.19357
}

Semantic roles & 50–950 ramp

primary

#337DC4

secondary

#CDA986

accent

#9246E2

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #337DC4

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

Preview Lab → · Contrast checker → · Palette generator →