#337A8A#337A8A

#337A8A is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.1% C 0.074 H 215.0°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#337A8A
RGB	rgb(51, 122, 138)
HSL	hsl(191, 46%, 37%)
HSV	hsv(191, 63%, 54%)
CMYK	cmyk(63%, 11.6%, 0%, 45.9%)
CIE-LAB	lab(47.57, -16.98, -15.33)
CIE-LCH	lch(47.57, 22.87, 222.08°)
OKLab	oklab(54.13% -0.0609 -0.0426)
OKLCH	oklch(54.13% 0.074 215)
XYZ	xyz(12.9104, 16.4565, 26.5359)
Luminance	0.1646 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337A8A #8A4333

analogous

#338A6E #337A8A #334F8A

triadic

#337A8A #8A337A #7A8A33

tetradic

#337A8A #6E338A #8A4333 #4F8A33

square

#337A8A #6E338A #8A4333 #4F8A33

split-complementary

#337A8A #8A334F #8A6E33

monochromatic

#122B31 #22525D #337A8A #44A2B7 #6EB9C9

Accessibility & contrast

On white

4.89

#337A8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#337A8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337A8A

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337A8A	#FFFFFF	#000000	##FFFFFF
##337A8A	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F768B

Deuteranopia (green-blind)

#626D8A

Tritanopia (blue-blind)

#00807F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #337a8a;
/* rgb */ color: rgb(51, 122, 138);
/* oklch */ color: oklch(54.1% 0.074 215.0);

Tailwind

colors: {
  custom: {
    50: '#74a0ac',
    500: '#337a8a',
    950: '#000000',
  },
}

SCSS

$custom: #337a8a;
$custom-light: #74a0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#337a8a",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 138
  },
  "hsl": {
    "h": 191.034,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.54131,
    "c": 0.07427,
    "h": 215
  },
  "luminance": 0.16458
}

Semantic roles & 50–950 ramp

primary

#337A8A

secondary

#B17567

accent

#6A52D6

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #337A8A

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

Preview Lab → · Contrast checker → · Palette generator →