#337FAE#337FAE

#337FAE is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.1% C 0.104 H 239.5°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#337FAE
RGB	rgb(51, 127, 174)
HSL	hsl(203, 55%, 44%)
HSV	hsv(203, 71%, 68%)
CMYK	cmyk(70.7%, 27%, 0%, 31.8%)
CIE-LAB	lab(50.61, -7.69, -31.68)
CIE-LCH	lch(50.61, 32.60, 256.36°)
OKLab	oklab(57.06% -0.0526 -0.0893)
OKLCH	oklch(57.06% 0.104 239.5)
XYZ	xyz(16.5916, 18.9367, 42.8169)
Luminance	0.1894 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FAE #AE6233

analogous

#33AEA0 #337FAE #3341AE

triadic

#337FAE #AE337F #7FAE33

tetradic

#337FAE #A033AE #AE6233 #41AE33

square

#337FAE #A033AE #AE6233 #41AE33

split-complementary

#337FAE #AE3341 #AEA033

monochromatic

#173A4F #255C7F #337FAE #529ECC #81B8DA

Accessibility & contrast

On white

4.39

#337FAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#337FAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FAE

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FAE	#FFFFFF	#000000	##000000
##337FAE	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697FB0

Deuteranopia (green-blind)

#5873AD

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337fae;
/* rgb */ color: rgb(51, 127, 174);
/* oklch */ color: oklch(57.1% 0.104 239.5);

Tailwind

colors: {
  custom: {
    50: '#7aa4c6',
    500: '#337fae',
    950: '#000000',
  },
}

SCSS

$custom: #337fae;
$custom-light: #7aa4c6;
$custom-dark: #000000;

JSON

{
  "hex": "#337fae",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 174
  },
  "hsl": {
    "h": 202.927,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.57055,
    "c": 0.10364,
    "h": 239.5
  },
  "luminance": 0.18939
}

Semantic roles & 50–950 ramp

primary

#337FAE

secondary

#C39679

accent

#824ADE

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #337FAE

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

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