#337DA8#337DA8

#337DA8 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.098 H 237.7°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#337DA8
RGB	rgb(51, 125, 168)
HSL	hsl(202, 53%, 43%)
HSV	hsv(202, 70%, 66%)
CMYK	cmyk(69.6%, 25.6%, 0%, 34.1%)
CIE-LAB	lab(49.73, -8.62, -29.57)
CIE-LCH	lch(49.73, 30.80, 253.75°)
OKLab	oklab(56.27% -0.0526 -0.0832)
OKLCH	oklch(56.27% 0.098 237.7)
XYZ	xyz(15.7640, 18.1965, 39.7197)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DA8 #A85E33

analogous

#33A898 #337DA8 #3343A8

triadic

#337DA8 #A8337D #7DA833

tetradic

#337DA8 #9833A8 #A85E33 #43A833

square

#337DA8 #9833A8 #A85E33 #43A833

split-complementary

#337DA8 #A83343 #A89833

monochromatic

#16374A #255A79 #337DA8 #4F9CC9 #7EB7D8

Accessibility & contrast

On white

4.53

#337DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#337DA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DA8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DA8	#FFFFFF	#000000	##000000
##337DA8	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697DAA

Deuteranopia (green-blind)

#5971A7

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337da8;
/* rgb */ color: rgb(51, 125, 168);
/* oklch */ color: oklch(56.3% 0.098 237.7);

Tailwind

colors: {
  custom: {
    50: '#79a2c2',
    500: '#337da8',
    950: '#000000',
  },
}

SCSS

$custom: #337da8;
$custom-light: #79a2c2;
$custom-dark: #000000;

JSON

{
  "hex": "#337da8",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 168
  },
  "hsl": {
    "h": 202.051,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56268,
    "c": 0.09845,
    "h": 237.7
  },
  "luminance": 0.18198
}

Semantic roles & 50–950 ramp

primary

#337DA8

secondary

#C19276

accent

#814BDD

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337DA8

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

Preview Lab → · Contrast checker → · Palette generator →