#337AC8#337AC8

#337AC8 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.3% C 0.140 H 253.2°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#337AC8
RGB	rgb(51, 122, 200)
HSL	hsl(211, 59%, 49%)
HSV	hsv(211, 75%, 78%)
CMYK	cmyk(74.5%, 39%, 0%, 21.6%)
CIE-LAB	lab(50.44, 4.66, -46.89)
CIE-LCH	lch(50.44, 47.12, 275.67°)
OKLab	oklab(57.35% -0.0403 -0.1338)
OKLCH	oklch(57.35% 0.14 253.2)
XYZ	xyz(18.7462, 18.7909, 57.2714)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AC8 #C88133

analogous

#33C5C8 #337AC8 #3633C8

triadic

#337AC8 #C8337A #7AC833

tetradic

#337AC8 #C833C5 #C88133 #33C836

square

#337AC8 #C833C5 #C88133 #33C836

split-complementary

#337AC8 #C83633 #C5C833

monochromatic

#1A3F66 #275C97 #337AC8 #6199D7 #92B9E3

Accessibility & contrast

On white

4.41

#337AC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#337AC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337AC8

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AC8	#FFFFFF	#000000	##000000
##337AC8	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5580CB

Deuteranopia (green-blind)

#3E72C6

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337ac8;
/* rgb */ color: rgb(51, 122, 200);
/* oklch */ color: oklch(57.3% 0.140 253.2);

Tailwind

colors: {
  custom: {
    50: '#7ea0d9',
    500: '#337ac8',
    950: '#000000',
  },
}

SCSS

$custom: #337ac8;
$custom-light: #7ea0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#337ac8",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 200
  },
  "hsl": {
    "h": 211.409,
    "s": 59.363,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57349,
    "c": 0.1397,
    "h": 253.2
  },
  "luminance": 0.18793
}

Semantic roles & 50–950 ramp

primary

#337AC8

secondary

#CEAD89

accent

#9845E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #337AC8

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

Preview Lab → · Contrast checker → · Palette generator →