#337DA9#337DA9

#337DA9 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.100 H 238.3°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#337DA9
RGB	rgb(51, 125, 169)
HSL	hsl(202, 54%, 43%)
HSV	hsv(202, 70%, 66%)
CMYK	cmyk(69.8%, 26%, 0%, 33.7%)
CIE-LAB	lab(49.78, -8.27, -30.08)
CIE-LCH	lch(49.78, 31.20, 254.62°)
OKLab	oklab(56.32% -0.0522 -0.0847)
OKLCH	oklch(56.32% 0.1 238.3)
XYZ	xyz(15.8575, 18.2339, 40.2122)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DA9 #A95F33

analogous

#33A99A #337DA9 #3342A9

triadic

#337DA9 #A9337D #7DA933

tetradic

#337DA9 #9A33A9 #A95F33 #42A933

square

#337DA9 #9A33A9 #A95F33 #42A933

split-complementary

#337DA9 #A93342 #A99A33

monochromatic

#17374B #255A7A #337DA9 #4F9CCA #7EB7D8

Accessibility & contrast

On white

4.52

#337DA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#337DA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DA9

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DA9	#FFFFFF	#000000	##000000
##337DA9	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687DAB

Deuteranopia (green-blind)

#5871A8

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337da9;
/* rgb */ color: rgb(51, 125, 169);
/* oklch */ color: oklch(56.3% 0.100 238.3);

Tailwind

colors: {
  custom: {
    50: '#79a2c2',
    500: '#337da9',
    950: '#000000',
  },
}

SCSS

$custom: #337da9;
$custom-light: #79a2c2;
$custom-dark: #000000;

JSON

{
  "hex": "#337da9",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 169
  },
  "hsl": {
    "h": 202.373,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.56318,
    "c": 0.09951,
    "h": 238.3
  },
  "luminance": 0.18236
}

Semantic roles & 50–950 ramp

primary

#337DA9

secondary

#C19277

accent

#814BDD

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337DA9

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

Preview Lab → · Contrast checker → · Palette generator →