#337E99#337E99

#337E99 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.084 H 225.2°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#337E99
RGB	rgb(51, 126, 153)
HSL	hsl(196, 50%, 40%)
HSV	hsv(196, 67%, 60%)
CMYK	cmyk(66.7%, 17.6%, 0%, 40%)
CIE-LAB	lab(49.40, -14.30, -21.34)
CIE-LCH	lch(49.40, 25.68, 236.18°)
OKLab	oklab(55.79% -0.0592 -0.0596)
OKLCH	oklch(55.79% 0.084 225.2)
XYZ	xyz(14.5736, 17.9239, 32.8224)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337E99 #994E33

analogous

#339981 #337E99 #334B99

triadic

#337E99 #99337E #7E9933

tetradic

#337E99 #813399 #994E33 #4B9933

square

#337E99 #813399 #994E33 #4B9933

split-complementary

#337E99 #99334B #998133

monochromatic

#14323D #24586B #337E99 #47A1C2 #75B9D1

Accessibility & contrast

On white

4.58

#337E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#337E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337E99

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337E99	#FFFFFF	#000000	##000000
##337E99	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7B9A

Deuteranopia (green-blind)

#617199

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337e99;
/* rgb */ color: rgb(51, 126, 153);
/* oklch */ color: oklch(55.8% 0.084 225.2);

Tailwind

colors: {
  custom: {
    50: '#77a3b7',
    500: '#337e99',
    950: '#000000',
  },
}

SCSS

$custom: #337e99;
$custom-light: #77a3b7;
$custom-dark: #000000;

JSON

{
  "hex": "#337e99",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 153
  },
  "hsl": {
    "h": 195.882,
    "s": 50,
    "l": 40
  },
  "oklch": {
    "l": 0.55794,
    "c": 0.08398,
    "h": 225.2
  },
  "luminance": 0.17925
}

Semantic roles & 50–950 ramp

primary

#337E99

secondary

#B9826E

accent

#734EDA

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #337E99

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

Preview Lab → · Contrast checker → · Palette generator →