#337D91#337D91

#337D91 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.2% C 0.078 H 218.6°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#337D91
RGB	rgb(51, 125, 145)
HSL	hsl(193, 48%, 38%)
HSV	hsv(193, 65%, 57%)
CMYK	cmyk(64.8%, 13.8%, 0%, 43.1%)
CIE-LAB	lab(48.78, -16.37, -17.61)
CIE-LCH	lch(48.78, 24.04, 227.09°)
OKLab	oklab(55.19% -0.0613 -0.049)
OKLCH	oklch(55.19% 0.078 218.6)
XYZ	xyz(13.8076, 17.4139, 29.4161)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337D91 #914733

analogous

#339176 #337D91 #334E91

triadic

#337D91 #91337D #7D9133

tetradic

#337D91 #763391 #914733 #4E9133

square

#337D91 #763391 #914733 #4E9133

split-complementary

#337D91 #91334E #917633

monochromatic

#132F36 #235664 #337D91 #44A3BD #71BACD

Accessibility & contrast

On white

4.68

#337D91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#337D91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337D91

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337D91	#FFFFFF	#000000	##FFFFFF
##337D91	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#707A92

Deuteranopia (green-blind)

#637091

Tritanopia (blue-blind)

#008483

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #337d91;
/* rgb */ color: rgb(51, 125, 145);
/* oklch */ color: oklch(55.2% 0.078 218.6);

Tailwind

colors: {
  custom: {
    50: '#76a2b1',
    500: '#337d91',
    950: '#000000',
  },
}

SCSS

$custom: #337d91;
$custom-light: #76a2b1;
$custom-dark: #000000;

JSON

{
  "hex": "#337d91",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 145
  },
  "hsl": {
    "h": 192.766,
    "s": 47.959,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55189,
    "c": 0.07848,
    "h": 218.6
  },
  "luminance": 0.17415
}

Semantic roles & 50–950 ramp

primary

#337D91

secondary

#B57A6B

accent

#6D50D8

background

#F7FAFA

surface

#EEF3F5

border

#C9CDCF

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #337D91

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

Preview Lab → · Contrast checker → · Palette generator →