#337CA7#337CA7

#337CA7 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.098 H 238.0°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#337CA7
RGB	rgb(51, 124, 167)
HSL	hsl(202, 53%, 43%)
HSV	hsv(202, 69%, 65%)
CMYK	cmyk(69.5%, 25.7%, 0%, 34.5%)
CIE-LAB	lab(49.38, -8.39, -29.53)
CIE-LCH	lch(49.38, 30.70, 254.14°)
OKLab	oklab(55.97% -0.0519 -0.0831)
OKLCH	oklch(55.97% 0.098 238)
XYZ	xyz(15.5452, 17.9074, 39.1889)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CA7 #A75E33

analogous

#33A798 #337CA7 #3342A7

triadic

#337CA7 #A7337C #7CA733

tetradic

#337CA7 #9833A7 #A75E33 #42A733

square

#337CA7 #9833A7 #A75E33 #42A733

split-complementary

#337CA7 #A73342 #A79833

monochromatic

#163649 #255978 #337CA7 #4E9BC9 #7DB6D7

Accessibility & contrast

On white

4.58

#337CA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#337CA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CA7

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CA7	#FFFFFF	#000000	##000000
##337CA7	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687CA9

Deuteranopia (green-blind)

#5870A6

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337ca7;
/* rgb */ color: rgb(51, 124, 167);
/* oklch */ color: oklch(56.0% 0.098 238.0);

Tailwind

colors: {
  custom: {
    50: '#79a1c1',
    500: '#337ca7',
    950: '#000000',
  },
}

SCSS

$custom: #337ca7;
$custom-light: #79a1c1;
$custom-dark: #000000;

JSON

{
  "hex": "#337ca7",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 167
  },
  "hsl": {
    "h": 202.241,
    "s": 53.211,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55975,
    "c": 0.09799,
    "h": 238
  },
  "luminance": 0.17909
}

Semantic roles & 50–950 ramp

primary

#337CA7

secondary

#C09176

accent

#814BDD

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337CA7

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

Preview Lab → · Contrast checker → · Palette generator →