#337B8A#337B8A

#337B8A is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.4% C 0.074 H 213.6°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#337B8A
RGB	rgb(51, 123, 138)
HSL	hsl(190, 46%, 37%)
HSV	hsv(190, 63%, 54%)
CMYK	cmyk(63%, 10.9%, 0%, 45.9%)
CIE-LAB	lab(47.88, -17.52, -14.85)
CIE-LCH	lch(47.88, 22.97, 220.27°)
OKLab	oklab(54.38% -0.062 -0.0412)
OKLCH	oklch(54.38% 0.074 213.6)
XYZ	xyz(13.0338, 16.7034, 26.5770)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337B8A #8A4233

analogous

#338A6E #337B8A #33508A

triadic

#337B8A #8A337B #7B8A33

tetradic

#337B8A #6E338A #8A4233 #508A33

square

#337B8A #6E338A #8A4233 #508A33

split-complementary

#337B8A #8A3350 #8A6E33

monochromatic

#122B31 #22535D #337B8A #44A3B7 #6EBAC9

Accessibility & contrast

On white

4.84

#337B8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#337B8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337B8A

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337B8A	#FFFFFF	#000000	##FFFFFF
##337B8A	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70778B

Deuteranopia (green-blind)

#636E8A

Tritanopia (blue-blind)

#008180

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #337b8a;
/* rgb */ color: rgb(51, 123, 138);
/* oklch */ color: oklch(54.4% 0.074 213.6);

Tailwind

colors: {
  custom: {
    50: '#75a1ac',
    500: '#337b8a',
    950: '#000000',
  },
}

SCSS

$custom: #337b8a;
$custom-light: #75a1ac;
$custom-dark: #000000;

JSON

{
  "hex": "#337b8a",
  "rgb": {
    "r": 51,
    "g": 123,
    "b": 138
  },
  "hsl": {
    "h": 190.345,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.54385,
    "c": 0.07444,
    "h": 213.6
  },
  "luminance": 0.16705
}

Semantic roles & 50–950 ramp

primary

#337B8A

secondary

#B17467

accent

#6952D6

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #337B8A

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

Preview Lab → · Contrast checker → · Palette generator →