#337C8D#337C8D

#337C8D is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.8% C 0.076 H 215.6°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#337C8D
RGB	rgb(51, 124, 141)
HSL	hsl(191, 47%, 38%)
HSV	hsv(191, 64%, 55%)
CMYK	cmyk(63.8%, 12.1%, 0%, 44.7%)
CIE-LAB	lab(48.31, -17.11, -15.96)
CIE-LCH	lch(48.31, 23.40, 223.01°)
OKLab	oklab(54.77% -0.0619 -0.0443)
OKLCH	oklch(54.77% 0.076 215.6)
XYZ	xyz(13.3787, 17.0408, 27.7783)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337C8D #8D4433

analogous

#338D71 #337C8D #334F8D

triadic

#337C8D #8D337C #7C8D33

tetradic

#337C8D #71338D #8D4433 #4F8D33

square

#337C8D #71338D #8D4433 #4F8D33

split-complementary

#337C8D #8D334F #8D7133

monochromatic

#122D33 #235460 #337C8D #43A4BA #6FBACB

Accessibility & contrast

On white

4.76

#337C8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#337C8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337C8D

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337C8D	#FFFFFF	#000000	##FFFFFF
##337C8D	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70788E

Deuteranopia (green-blind)

#636F8D

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #337c8d;
/* rgb */ color: rgb(51, 124, 141);
/* oklch */ color: oklch(54.8% 0.076 215.6);

Tailwind

colors: {
  custom: {
    50: '#75a2ae',
    500: '#337c8d',
    950: '#000000',
  },
}

SCSS

$custom: #337c8d;
$custom-light: #75a2ae;
$custom-dark: #000000;

JSON

{
  "hex": "#337c8d",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 141
  },
  "hsl": {
    "h": 191.333,
    "s": 46.875,
    "l": 37.647
  },
  "oklch": {
    "l": 0.54765,
    "c": 0.07612,
    "h": 215.6
  },
  "luminance": 0.17042
}

Semantic roles & 50–950 ramp

primary

#337C8D

secondary

#B37769

accent

#6A51D7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #337C8D

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

Preview Lab → · Contrast checker → · Palette generator →