#337EC4#337EC4

#337EC4 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.0% C 0.131 H 249.8°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#337EC4
RGB	rgb(51, 126, 196)
HSL	hsl(209, 59%, 48%)
HSV	hsv(209, 74%, 77%)
CMYK	cmyk(74%, 35.7%, 0%, 23.1%)
CIE-LAB	lab(51.39, 0.77, -43.10)
CIE-LCH	lch(51.39, 43.10, 271.02°)
OKLab	oklab(58.02% -0.045 -0.1226)
OKLCH	oklch(58.02% 0.131 249.8)
XYZ	xyz(18.7861, 19.6089, 55.0087)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EC4 #C47933

analogous

#33C4C1 #337EC4 #3335C4

triadic

#337EC4 #C4337E #7EC433

tetradic

#337EC4 #C133C4 #C47933 #35C433

square

#337EC4 #C133C4 #C47933 #35C433

split-complementary

#337EC4 #C43335 #C4C133

monochromatic

#1A4063 #265F93 #337EC4 #5F9CD5 #8FBAE2

Accessibility & contrast

On white

4.27

#337EC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#337EC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EC4

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EC4	#FFFFFF	#000000	##000000
##337EC4	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E82C7

Deuteranopia (green-blind)

#4974C3

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337ec4;
/* rgb */ color: rgb(51, 126, 196);
/* oklch */ color: oklch(58.0% 0.131 249.8);

Tailwind

colors: {
  custom: {
    50: '#7ea3d6',
    500: '#337ec4',
    950: '#000000',
  },
}

SCSS

$custom: #337ec4;
$custom-light: #7ea3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#337ec4",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 196
  },
  "hsl": {
    "h": 208.966,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.58023,
    "c": 0.13057,
    "h": 249.8
  },
  "luminance": 0.19611
}

Semantic roles & 50–950 ramp

primary

#337EC4

secondary

#CDA886

accent

#9146E2

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #337EC4

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

Preview Lab → · Contrast checker → · Palette generator →