#337EA6#337EA6

#337EA6 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.4% C 0.096 H 235.5°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#337EA6
RGB	rgb(51, 126, 166)
HSL	hsl(201, 53%, 43%)
HSV	hsv(201, 69%, 65%)
CMYK	cmyk(69.3%, 24.1%, 0%, 34.9%)
CIE-LAB	lab(49.95, -9.89, -28.07)
CIE-LCH	lch(49.95, 29.76, 250.59°)
OKLab	oklab(56.41% -0.0543 -0.0789)
OKLCH	oklch(56.41% 0.096 235.5)
XYZ	xyz(15.7063, 18.3770, 38.7884)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EA6 #A65B33

analogous

#33A695 #337EA6 #3344A6

triadic

#337EA6 #A6337E #7EA633

tetradic

#337EA6 #9533A6 #A65B33 #44A633

square

#337EA6 #9533A6 #A65B33 #44A633

split-complementary

#337EA6 #A63344 #A69533

monochromatic

#163748 #255A77 #337EA6 #4E9EC9 #7CB7D7

Accessibility & contrast

On white

4.49

#337EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#337EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EA6

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EA6	#FFFFFF	#000000	##000000
##337EA6	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA8

Deuteranopia (green-blind)

#5B72A5

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337ea6;
/* rgb */ color: rgb(51, 126, 166);
/* oklch */ color: oklch(56.4% 0.096 235.5);

Tailwind

colors: {
  custom: {
    50: '#78a3c0',
    500: '#337ea6',
    950: '#000000',
  },
}

SCSS

$custom: #337ea6;
$custom-light: #78a3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#337ea6",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 166
  },
  "hsl": {
    "h": 200.87,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.56411,
    "c": 0.09579,
    "h": 235.5
  },
  "luminance": 0.18379
}

Semantic roles & 50–950 ramp

primary

#337EA6

secondary

#C08F75

accent

#7E4BDC

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337EA6

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

Preview Lab → · Contrast checker → · Palette generator →