#337FA8#337FA8

#337FA8 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.8% C 0.097 H 235.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#337FA8
RGB	rgb(51, 127, 168)
HSL	hsl(201, 53%, 43%)
HSV	hsv(201, 70%, 66%)
CMYK	cmyk(69.6%, 24.4%, 0%, 34.1%)
CIE-LAB	lab(50.34, -9.77, -28.62)
CIE-LCH	lch(50.34, 30.24, 251.14°)
OKLab	oklab(56.75% -0.0546 -0.0805)
OKLCH	oklch(56.75% 0.097 235.8)
XYZ	xyz(16.0197, 18.7080, 39.8049)
Luminance	0.1871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FA8 #A85C33

analogous

#33A897 #337FA8 #3344A8

triadic

#337FA8 #A8337F #7FA833

tetradic

#337FA8 #9733A8 #A85C33 #44A833

square

#337FA8 #9733A8 #A85C33 #44A833

split-complementary

#337FA8 #A83344 #A89733

monochromatic

#16384A #255C79 #337FA8 #4F9EC9 #7EB8D8

Accessibility & contrast

On white

4.43

#337FA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#337FA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FA8

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FA8	#FFFFFF	#000000	##000000
##337FA8	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7EAA

Deuteranopia (green-blind)

#5B73A7

Tritanopia (blue-blind)

#008A8D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337fa8;
/* rgb */ color: rgb(51, 127, 168);
/* oklch */ color: oklch(56.8% 0.097 235.8);

Tailwind

colors: {
  custom: {
    50: '#79a4c2',
    500: '#337fa8',
    950: '#000000',
  },
}

SCSS

$custom: #337fa8;
$custom-light: #79a4c2;
$custom-dark: #000000;

JSON

{
  "hex": "#337fa8",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 168
  },
  "hsl": {
    "h": 201.026,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56753,
    "c": 0.09728,
    "h": 235.8
  },
  "luminance": 0.1871
}

Semantic roles & 50–950 ramp

primary

#337FA8

secondary

#C19076

accent

#7E4BDD

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337FA8

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

Preview Lab → · Contrast checker → · Palette generator →