#337DA7#337DA7

#337DA7 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.2% C 0.097 H 237.1°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#337DA7
RGB	rgb(51, 125, 167)
HSL	hsl(202, 53%, 43%)
HSV	hsv(202, 69%, 65%)
CMYK	cmyk(69.5%, 25.1%, 0%, 34.5%)
CIE-LAB	lab(49.69, -8.97, -29.06)
CIE-LCH	lch(49.69, 30.41, 252.85°)
OKLab	oklab(56.22% -0.0529 -0.0818)
OKLCH	oklch(56.22% 0.097 237.1)
XYZ	xyz(15.6712, 18.1594, 39.2309)
Luminance	0.1816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DA7 #A75D33

analogous

#33A797 #337DA7 #3343A7

triadic

#337DA7 #A7337D #7DA733

tetradic

#337DA7 #9733A7 #A75D33 #43A733

square

#337DA7 #9733A7 #A75D33 #43A733

split-complementary

#337DA7 #A73343 #A79733

monochromatic

#163749 #255A78 #337DA7 #4E9DC9 #7DB7D7

Accessibility & contrast

On white

4.53

#337DA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#337DA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DA7

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DA7	#FFFFFF	#000000	##000000
##337DA7	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697DA9

Deuteranopia (green-blind)

#5971A6

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337da7;
/* rgb */ color: rgb(51, 125, 167);
/* oklch */ color: oklch(56.2% 0.097 237.1);

Tailwind

colors: {
  custom: {
    50: '#79a2c1',
    500: '#337da7',
    950: '#000000',
  },
}

SCSS

$custom: #337da7;
$custom-light: #79a2c1;
$custom-dark: #000000;

JSON

{
  "hex": "#337da7",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 167
  },
  "hsl": {
    "h": 201.724,
    "s": 53.211,
    "l": 42.745
  },
  "oklch": {
    "l": 0.56217,
    "c": 0.09739,
    "h": 237.1
  },
  "luminance": 0.18161
}

Semantic roles & 50–950 ramp

primary

#337DA7

secondary

#C09176

accent

#804BDD

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337DA7

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

Preview Lab → · Contrast checker → · Palette generator →