#337AA9#337AA9

#337AA9 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.102 H 241.1°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#337AA9
RGB	rgb(51, 122, 169)
HSL	hsl(204, 54%, 43%)
HSV	hsv(204, 70%, 66%)
CMYK	cmyk(69.8%, 27.8%, 0%, 33.7%)
CIE-LAB	lab(48.87, -6.52, -31.51)
CIE-LCH	lch(48.87, 32.17, 258.30°)
OKLab	oklab(55.6% -0.0491 -0.0889)
OKLCH	oklch(55.6% 0.102 241.1)
XYZ	xyz(15.4834, 17.4858, 40.0875)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AA9 #A96233

analogous

#33A99D #337AA9 #333FA9

triadic

#337AA9 #A9337A #7AA933

tetradic

#337AA9 #9D33A9 #A96233 #3FA933

square

#337AA9 #9D33A9 #A96233 #3FA933

split-complementary

#337AA9 #A9333F #A99D33

monochromatic

#17364B #25587A #337AA9 #4F99CA #7EB4D8

Accessibility & contrast

On white

4.67

#337AA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#337AA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #337AA9

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AA9	#FFFFFF	#000000	##FFFFFF
##337AA9	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647AAB

Deuteranopia (green-blind)

#546FA8

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #337aa9;
/* rgb */ color: rgb(51, 122, 169);
/* oklch */ color: oklch(55.6% 0.102 241.1);

Tailwind

colors: {
  custom: {
    50: '#79a0c2',
    500: '#337aa9',
    950: '#000000',
  },
}

SCSS

$custom: #337aa9;
$custom-light: #79a0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#337aa9",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 169
  },
  "hsl": {
    "h": 203.898,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.55595,
    "c": 0.10153,
    "h": 241.1
  },
  "luminance": 0.17487
}

Semantic roles & 50–950 ramp

primary

#337AA9

secondary

#C19477

accent

#854BDD

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #337AA9

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

Preview Lab → · Contrast checker → · Palette generator →