#337A9D#337A9D

#337A9D is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.0% C 0.089 H 233.1°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#337A9D
RGB	rgb(51, 122, 157)
HSL	hsl(200, 51%, 41%)
HSV	hsv(200, 68%, 62%)
CMYK	cmyk(67.5%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(48.33, -10.68, -25.33)
CIE-LCH	lch(48.33, 27.50, 247.13°)
OKLab	oklab(54.99% -0.0533 -0.071)
OKLCH	oklch(54.99% 0.089 233.1)
XYZ	xyz(14.4082, 17.0557, 34.4245)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337A9D #9D5633

analogous

#339D8B #337A9D #33459D

triadic

#337A9D #9D337A #7A9D33

tetradic

#337A9D #8B339D #9D5633 #459D33

square

#337A9D #8B339D #9D5633 #459D33

split-complementary

#337A9D #9D3345 #9D8B33

monochromatic

#153241 #24566F #337A9D #499BC4 #77B5D3

Accessibility & contrast

On white

4.76

#337A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#337A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #337A9D

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337A9D	#FFFFFF	#000000	##FFFFFF
##337A9D	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)

#69799F

Deuteranopia (green-blind)

#5A6E9C

Tritanopia (blue-blind)

#008386

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #337a9d;
/* rgb */ color: rgb(51, 122, 157);
/* oklch */ color: oklch(55.0% 0.089 233.1);

Tailwind

colors: {
  custom: {
    50: '#77a0ba',
    500: '#337a9d',
    950: '#000000',
  },
}

SCSS

$custom: #337a9d;
$custom-light: #77a0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#337a9d",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 199.811,
    "s": 50.962,
    "l": 40.784
  },
  "oklch": {
    "l": 0.54993,
    "c": 0.08883,
    "h": 233.1
  },
  "luminance": 0.17057
}

Semantic roles & 50–950 ramp

primary

#337A9D

secondary

#BB8970

accent

#7C4DDA

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #337A9D

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

Preview Lab → · Contrast checker → · Palette generator →