#337ACA#337ACA

#337ACA is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.5% C 0.142 H 253.7°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#337ACA
RGB	rgb(51, 122, 202)
HSL	hsl(212, 60%, 50%)
HSV	hsv(212, 75%, 79%)
CMYK	cmyk(74.8%, 39.6%, 0%, 20.8%)
CIE-LAB	lab(50.55, 5.39, -47.85)
CIE-LCH	lch(50.55, 48.16, 276.43°)
OKLab	oklab(57.47% -0.0398 -0.1366)
OKLCH	oklch(57.47% 0.142 253.7)
XYZ	xyz(18.9815, 18.8850, 58.5104)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337ACA #CA8333

analogous

#33C6CA #337ACA #3733CA

triadic

#337ACA #CA337A #7ACA33

tetradic

#337ACA #CA33C6 #CA8333 #33CA37

square

#337ACA #CA33C6 #CA8333 #33CA37

split-complementary

#337ACA #CA3733 #C6CA33

monochromatic

#1A3F68 #275C99 #337ACA #639AD8 #94B9E4

Accessibility & contrast

On white

4.40

#337ACA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#337ACA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337ACA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337ACA	#FFFFFF	#000000	##000000
##337ACA	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CD

Deuteranopia (green-blind)

#3C72C8

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337aca;
/* rgb */ color: rgb(51, 122, 202);
/* oklch */ color: oklch(57.5% 0.142 253.7);

Tailwind

colors: {
  custom: {
    50: '#7f9fda',
    500: '#337aca',
    950: '#000000',
  },
}

SCSS

$custom: #337aca;
$custom-light: #7f9fda;
$custom-dark: #000000;

JSON

{
  "hex": "#337aca",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 202
  },
  "hsl": {
    "h": 211.788,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57471,
    "c": 0.14228,
    "h": 253.7
  },
  "luminance": 0.18887
}

Semantic roles & 50–950 ramp

primary

#337ACA

secondary

#CFAE8A

accent

#9945E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #337ACA

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

Preview Lab → · Contrast checker → · Palette generator →