#337EA0#337EA0

#337EA0 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.1% C 0.090 H 231.1°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#337EA0
RGB	rgb(51, 126, 160)
HSL	hsl(199, 52%, 41%)
HSV	hsv(199, 68%, 63%)
CMYK	cmyk(68.1%, 21.2%, 0%, 37.3%)
CIE-LAB	lab(49.69, -11.94, -24.98)
CIE-LCH	lch(49.69, 27.69, 244.44°)
OKLab	oklab(56.12% -0.0565 -0.07)
OKLCH	oklch(56.12% 0.09 231.1)
XYZ	xyz(15.1687, 18.1619, 35.9571)
Luminance	0.1816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EA0 #A05533

analogous

#33A08C #337EA0 #3347A0

triadic

#337EA0 #A0337E #7EA033

tetradic

#337EA0 #8C33A0 #A05533 #47A033

square

#337EA0 #8C33A0 #A05533 #47A033

split-complementary

#337EA0 #A03347 #A08C33

monochromatic

#153543 #245972 #337EA0 #4B9FC6 #79B8D4

Accessibility & contrast

On white

4.53

#337EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#337EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EA0

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EA0	#FFFFFF	#000000	##000000
##337EA0	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)

#6D7CA2

Deuteranopia (green-blind)

#5E71A0

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337ea0;
/* rgb */ color: rgb(51, 126, 160);
/* oklch */ color: oklch(56.1% 0.090 231.1);

Tailwind

colors: {
  custom: {
    50: '#78a3bc',
    500: '#337ea0',
    950: '#000000',
  },
}

SCSS

$custom: #337ea0;
$custom-light: #78a3bc;
$custom-dark: #000000;

JSON

{
  "hex": "#337ea0",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 160
  },
  "hsl": {
    "h": 198.716,
    "s": 51.659,
    "l": 41.373
  },
  "oklch": {
    "l": 0.5612,
    "c": 0.08996,
    "h": 231.1
  },
  "luminance": 0.18164
}

Semantic roles & 50–950 ramp

primary

#337EA0

secondary

#BD8972

accent

#794DDB

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337EA0

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

Preview Lab → · Contrast checker → · Palette generator →