#337CDE#337CDE

#337CDE is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 59.2% C 0.166 H 257.0°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#337CDE
RGB	rgb(51, 124, 222)
HSL	hsl(214, 72%, 54%)
HSV	hsv(214, 77%, 87%)
CMYK	cmyk(77%, 44.1%, 0%, 12.9%)
CIE-LAB	lab(52.28, 11.55, -56.43)
CIE-LCH	lch(52.28, 57.60, 281.57°)
OKLab	oklab(59.18% -0.0374 -0.1618)
OKLCH	oklch(59.18% 0.166 257)
XYZ	xyz(21.7528, 20.3905, 71.8824)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CDE #DE9533

analogous

#33D1DE #337CDE #3F33DE

triadic

#337CDE #DE337C #7CDE33

tetradic

#337CDE #DE33D1 #DE9533 #33DE3F

square

#337CDE #DE33D1 #DE9533 #33DE3F

split-complementary

#337CDE #DE3F33 #D1DE33

monochromatic

#154382 #1D5FB6 #337CDE #689EE7 #9CC0EF

Accessibility & contrast

On white

4.13

#337CDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#337CDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CDE

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CDE	#FFFFFF	#000000	##000000
##337CDE	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4985E2

Deuteranopia (green-blind)

#2675DC

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #337cde;
/* rgb */ color: rgb(51, 124, 222);
/* oklch */ color: oklch(59.2% 0.166 257.0);

Tailwind

colors: {
  custom: {
    50: '#83a1e9',
    500: '#337cde',
    950: '#000000',
  },
}

SCSS

$custom: #337cde;
$custom-light: #83a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#337cde",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 222
  },
  "hsl": {
    "h": 214.386,
    "s": 72.152,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59184,
    "c": 0.16602,
    "h": 257
  },
  "luminance": 0.20393
}

Semantic roles & 50–950 ramp

primary

#337CDE

secondary

#DBBC92

accent

#A139EF

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #337CDE

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

Preview Lab → · Contrast checker → · Palette generator →