#337C8F#337C8F

#337C8F is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.9% C 0.077 H 217.8°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#337C8F
RGB	rgb(51, 124, 143)
HSL	hsl(192, 47%, 38%)
HSV	hsv(192, 64%, 56%)
CMYK	cmyk(64.3%, 13.3%, 0%, 43.9%)
CIE-LAB	lab(48.39, -16.47, -17.03)
CIE-LCH	lch(48.39, 23.69, 225.96°)
OKLab	oklab(54.85% -0.061 -0.0474)
OKLCH	oklch(54.85% 0.077 217.8)
XYZ	xyz(13.5288, 17.1009, 28.5691)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337C8F #8F4633

analogous

#338F74 #337C8F #334E8F

triadic

#337C8F #8F337C #7C8F33

tetradic

#337C8F #74338F #8F4633 #4E8F33

square

#337C8F #74338F #8F4633 #4E8F33

split-complementary

#337C8F #8F334E #8F7433

monochromatic

#132E35 #235562 #337C8F #43A3BC #70B9CC

Accessibility & contrast

On white

4.75

#337C8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#337C8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337C8F

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337C8F	#FFFFFF	#000000	##FFFFFF
##337C8F	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#707990

Deuteranopia (green-blind)

#626F8F

Tritanopia (blue-blind)

#008382

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #337c8f;
/* rgb */ color: rgb(51, 124, 143);
/* oklch */ color: oklch(54.9% 0.077 217.8);

Tailwind

colors: {
  custom: {
    50: '#75a2af',
    500: '#337c8f',
    950: '#000000',
  },
}

SCSS

$custom: #337c8f;
$custom-light: #75a2af;
$custom-dark: #000000;

JSON

{
  "hex": "#337c8f",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 143
  },
  "hsl": {
    "h": 192.391,
    "s": 47.423,
    "l": 38.039
  },
  "oklch": {
    "l": 0.54851,
    "c": 0.07724,
    "h": 217.8
  },
  "luminance": 0.17102
}

Semantic roles & 50–950 ramp

primary

#337C8F

secondary

#B4796A

accent

#6C51D7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #337C8F

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

Preview Lab → · Contrast checker → · Palette generator →