#337FC4#337FC4

#337FC4 is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.3% C 0.130 H 249.3°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#337FC4
RGB	rgb(51, 127, 196)
HSL	hsl(209, 59%, 48%)
HSV	hsv(209, 74%, 77%)
CMYK	cmyk(74%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(51.69, 0.17, -42.63)
CIE-LCH	lch(51.69, 42.63, 270.23°)
OKLab	oklab(58.25% -0.0459 -0.1212)
OKLCH	oklch(58.25% 0.13 249.3)
XYZ	xyz(18.9146, 19.8659, 55.0515)
Luminance	0.1987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FC4 #C47833

analogous

#33C4C0 #337FC4 #3336C4

triadic

#337FC4 #C4337F #7FC433

tetradic

#337FC4 #C033C4 #C47833 #36C433

square

#337FC4 #C033C4 #C47833 #36C433

split-complementary

#337FC4 #C43336 #C4C033

monochromatic

#1A4063 #266093 #337FC4 #5F9DD5 #8FBBE2

Accessibility & contrast

On white

4.22

#337FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#337FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FC4

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FC4	#FFFFFF	#000000	##000000
##337FC4	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83C7

Deuteranopia (green-blind)

#4A75C3

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #337fc4;
/* rgb */ color: rgb(51, 127, 196);
/* oklch */ color: oklch(58.3% 0.130 249.3);

Tailwind

colors: {
  custom: {
    50: '#7ea3d6',
    500: '#337fc4',
    950: '#000000',
  },
}

SCSS

$custom: #337fc4;
$custom-light: #7ea3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#337fc4",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 208.552,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.58253,
    "c": 0.12961,
    "h": 249.3
  },
  "luminance": 0.19868
}

Semantic roles & 50–950 ramp

primary

#337FC4

secondary

#CDA886

accent

#9046E2

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #337FC4

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

Preview Lab → · Contrast checker → · Palette generator →