#337EA9#337EA9

#337EA9 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.099 H 237.4°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#337EA9
RGB	rgb(51, 126, 169)
HSL	hsl(202, 54%, 43%)
HSV	hsv(202, 70%, 66%)
CMYK	cmyk(69.8%, 25.4%, 0%, 33.7%)
CIE-LAB	lab(50.08, -8.85, -29.61)
CIE-LCH	lch(50.08, 30.90, 253.35°)
OKLab	oklab(56.56% -0.0532 -0.0833)
OKLCH	oklch(56.56% 0.099 237.4)
XYZ	xyz(15.9847, 18.4883, 40.2546)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EA9 #A95E33

analogous

#33A999 #337EA9 #3343A9

triadic

#337EA9 #A9337E #7EA933

tetradic

#337EA9 #9933A9 #A95E33 #43A933

square

#337EA9 #9933A9 #A95E33 #43A933

split-complementary

#337EA9 #A93343 #A99933

monochromatic

#17384B #255B7A #337EA9 #4F9DCA #7EB7D8

Accessibility & contrast

On white

4.47

#337EA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#337EA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EA9

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EA9	#FFFFFF	#000000	##000000
##337EA9	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7EAB

Deuteranopia (green-blind)

#5A72A8

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337ea9;
/* rgb */ color: rgb(51, 126, 169);
/* oklch */ color: oklch(56.6% 0.099 237.4);

Tailwind

colors: {
  custom: {
    50: '#79a3c2',
    500: '#337ea9',
    950: '#000000',
  },
}

SCSS

$custom: #337ea9;
$custom-light: #79a3c2;
$custom-dark: #000000;

JSON

{
  "hex": "#337ea9",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 169
  },
  "hsl": {
    "h": 201.864,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.5656,
    "c": 0.09889,
    "h": 237.4
  },
  "luminance": 0.1849
}

Semantic roles & 50–950 ramp

primary

#337EA9

secondary

#C19277

accent

#804BDD

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337EA9

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

Preview Lab → · Contrast checker → · Palette generator →