#337FA6#337FA6

#337FA6 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.7% C 0.095 H 234.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#337FA6
RGB	rgb(51, 127, 166)
HSL	hsl(200, 53%, 43%)
HSV	hsv(200, 69%, 65%)
CMYK	cmyk(69.3%, 23.5%, 0%, 34.9%)
CIE-LAB	lab(50.26, -10.46, -27.60)
CIE-LCH	lch(50.26, 29.51, 249.24°)
OKLab	oklab(56.65% -0.0554 -0.0775)
OKLCH	oklch(56.65% 0.095 234.5)
XYZ	xyz(15.8348, 18.6340, 38.8312)
Luminance	0.1864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FA6 #A65A33

analogous

#33A693 #337FA6 #3345A6

triadic

#337FA6 #A6337F #7FA633

tetradic

#337FA6 #9333A6 #A65A33 #45A633

square

#337FA6 #9333A6 #A65A33 #45A633

split-complementary

#337FA6 #A63345 #A69333

monochromatic

#163748 #255B77 #337FA6 #4E9FC9 #7CB8D7

Accessibility & contrast

On white

4.44

#337FA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#337FA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FA6

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FA6	#FFFFFF	#000000	##000000
##337FA6	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)

#6C7EA8

Deuteranopia (green-blind)

#5C73A5

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337fa6;
/* rgb */ color: rgb(51, 127, 166);
/* oklch */ color: oklch(56.7% 0.095 234.5);

Tailwind

colors: {
  custom: {
    50: '#79a4c0',
    500: '#337fa6',
    950: '#000000',
  },
}

SCSS

$custom: #337fa6;
$custom-light: #79a4c0;
$custom-dark: #000000;

JSON

{
  "hex": "#337fa6",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 166
  },
  "hsl": {
    "h": 200.348,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.56654,
    "c": 0.09526,
    "h": 234.5
  },
  "luminance": 0.18636
}

Semantic roles & 50–950 ramp

primary

#337FA6

secondary

#C08E75

accent

#7D4BDC

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337FA6

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

Preview Lab → · Contrast checker → · Palette generator →