#337D9A#337D9A

#337D9A is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.6% C 0.085 H 227.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#337D9A
RGB	rgb(51, 125, 154)
HSL	hsl(197, 50%, 40%)
HSV	hsv(197, 67%, 60%)
CMYK	cmyk(66.9%, 18.8%, 0%, 39.6%)
CIE-LAB	lab(49.13, -13.40, -22.34)
CIE-LCH	lch(49.13, 26.05, 239.04°)
OKLab	oklab(55.59% -0.0577 -0.0624)
OKLCH	oklch(55.59% 0.085 227.3)
XYZ	xyz(14.5293, 17.7026, 33.2168)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337D9A #9A5033

analogous

#339A83 #337D9A #334A9A

triadic

#337D9A #9A337D #7D9A33

tetradic

#337D9A #83339A #9A5033 #4A9A33

square

#337D9A #83339A #9A5033 #4A9A33

split-complementary

#337D9A #9A334A #9A8333

monochromatic

#15323E #24586C #337D9A #48A0C2 #76B8D2

Accessibility & contrast

On white

4.62

#337D9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#337D9A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #337D9A

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337D9A	#FFFFFF	#000000	##FFFFFF
##337D9A	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7B9B

Deuteranopia (green-blind)

#5F709A

Tritanopia (blue-blind)

#008586

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337d9a;
/* rgb */ color: rgb(51, 125, 154);
/* oklch */ color: oklch(55.6% 0.085 227.3);

Tailwind

colors: {
  custom: {
    50: '#77a2b7',
    500: '#337d9a',
    950: '#000000',
  },
}

SCSS

$custom: #337d9a;
$custom-light: #77a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#337d9a",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 154
  },
  "hsl": {
    "h": 196.893,
    "s": 50.244,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55592,
    "c": 0.08502,
    "h": 227.3
  },
  "luminance": 0.17704
}

Semantic roles & 50–950 ramp

primary

#337D9A

secondary

#BA846F

accent

#754EDA

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #337D9A

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

Preview Lab → · Contrast checker → · Palette generator →