#337C91#337C91

#337C91 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 54.9% C 0.078 H 219.9°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#337C91
RGB	rgb(51, 124, 145)
HSL	hsl(193, 48%, 38%)
HSV	hsv(193, 65%, 57%)
CMYK	cmyk(64.8%, 14.5%, 0%, 43.1%)
CIE-LAB	lab(48.46, -15.82, -18.09)
CIE-LCH	lch(48.46, 24.03, 228.83°)
OKLab	oklab(54.94% -0.0602 -0.0503)
OKLCH	oklch(54.94% 0.078 219.9)
XYZ	xyz(13.6817, 17.1620, 29.3741)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337C91 #914833

analogous

#339177 #337C91 #334D91

triadic

#337C91 #91337C #7C9133

tetradic

#337C91 #773391 #914833 #4D9133

square

#337C91 #773391 #914833 #4D9133

split-complementary

#337C91 #91334D #917733

monochromatic

#132F36 #235564 #337C91 #44A2BD #71B9CD

Accessibility & contrast

On white

4.74

#337C91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#337C91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337C91

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337C91	#FFFFFF	#000000	##FFFFFF
##337C91	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7992

Deuteranopia (green-blind)

#626F91

Tritanopia (blue-blind)

#008383

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #337c91;
/* rgb */ color: rgb(51, 124, 145);
/* oklch */ color: oklch(54.9% 0.078 219.9);

Tailwind

colors: {
  custom: {
    50: '#75a2b1',
    500: '#337c91',
    950: '#000000',
  },
}

SCSS

$custom: #337c91;
$custom-light: #75a2b1;
$custom-dark: #000000;

JSON

{
  "hex": "#337c91",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 145
  },
  "hsl": {
    "h": 193.404,
    "s": 47.959,
    "l": 38.431
  },
  "oklch": {
    "l": 0.54937,
    "c": 0.07847,
    "h": 219.9
  },
  "luminance": 0.17163
}

Semantic roles & 50–950 ramp

primary

#337C91

secondary

#B57B6B

accent

#6E50D8

background

#F7F9FA

surface

#EEF2F5

border

#C9CCCF

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #337C91

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

Preview Lab → · Contrast checker → · Palette generator →