#337FA7#337FA7

#337FA7 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.7% C 0.096 H 235.2°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#337FA7
RGB	rgb(51, 127, 167)
HSL	hsl(201, 53%, 43%)
HSV	hsv(201, 69%, 65%)
CMYK	cmyk(69.5%, 24%, 0%, 34.5%)
CIE-LAB	lab(50.30, -10.12, -28.11)
CIE-LCH	lch(50.30, 29.87, 250.20°)
OKLab	oklab(56.7% -0.055 -0.079)
OKLCH	oklch(56.7% 0.096 235.2)
XYZ	xyz(15.9269, 18.6708, 39.3162)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FA7 #A75B33

analogous

#33A795 #337FA7 #3345A7

triadic

#337FA7 #A7337F #7FA733

tetradic

#337FA7 #9533A7 #A75B33 #45A733

square

#337FA7 #9533A7 #A75B33 #45A733

split-complementary

#337FA7 #A73345 #A79533

monochromatic

#163849 #255B78 #337FA7 #4E9FC9 #7DB8D7

Accessibility & contrast

On white

4.44

#337FA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#337FA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FA7

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FA7	#FFFFFF	#000000	##000000
##337FA7	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)

#6C7EA9

Deuteranopia (green-blind)

#5C73A6

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337fa7;
/* rgb */ color: rgb(51, 127, 167);
/* oklch */ color: oklch(56.7% 0.096 235.2);

Tailwind

colors: {
  custom: {
    50: '#79a4c1',
    500: '#337fa7',
    950: '#000000',
  },
}

SCSS

$custom: #337fa7;
$custom-light: #79a4c1;
$custom-dark: #000000;

JSON

{
  "hex": "#337fa7",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 167
  },
  "hsl": {
    "h": 200.69,
    "s": 53.211,
    "l": 42.745
  },
  "oklch": {
    "l": 0.56703,
    "c": 0.09626,
    "h": 235.2
  },
  "luminance": 0.18673
}

Semantic roles & 50–950 ramp

primary

#337FA7

secondary

#C08F76

accent

#7D4BDD

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337FA7

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

Preview Lab → · Contrast checker → · Palette generator →