#337CBA#337CBA

#337CBA is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.0% C 0.120 H 247.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#337CBA
RGB	rgb(51, 124, 186)
HSL	hsl(208, 57%, 46%)
HSV	hsv(208, 73%, 73%)
CMYK	cmyk(72.6%, 33.3%, 0%, 27.1%)
CIE-LAB	lab(50.29, -1.65, -39.11)
CIE-LCH	lch(50.29, 39.14, 267.58°)
OKLab	oklab(56.99% -0.0458 -0.1109)
OKLCH	oklch(56.99% 0.12 247.5)
XYZ	xyz(17.4325, 18.6623, 49.1283)
Luminance	0.1866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CBA #BA7133

analogous

#33BAB5 #337CBA #3338BA

triadic

#337CBA #BA337C #7CBA33

tetradic

#337CBA #B533BA #BA7133 #38BA33

square

#337CBA #B533BA #BA7133 #38BA33

split-complementary

#337CBA #BA3338 #BAB533

monochromatic

#193C5A #265C8A #337CBA #599AD1 #89B7DF

Accessibility & contrast

On white

4.44

#337CBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#337CBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CBA

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CBA	#FFFFFF	#000000	##000000
##337CBA	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBD

Deuteranopia (green-blind)

#4D72B9

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337cba;
/* rgb */ color: rgb(51, 124, 186);
/* oklch */ color: oklch(57.0% 0.120 247.5);

Tailwind

colors: {
  custom: {
    50: '#7ca1cf',
    500: '#337cba',
    950: '#000000',
  },
}

SCSS

$custom: #337cba;
$custom-light: #7ca1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#337cba",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 186
  },
  "hsl": {
    "h": 207.556,
    "s": 56.962,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56989,
    "c": 0.12005,
    "h": 247.5
  },
  "luminance": 0.18664
}

Semantic roles & 50–950 ramp

primary

#337CBA

secondary

#C9A180

accent

#8E48E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #337CBA

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

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