#303299#303299

#303299 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.7% C 0.164 H 274.8°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#303299
RGB	rgb(48, 50, 153)
HSL	hsl(239, 52%, 39%)
HSV	hsv(239, 69%, 60%)
CMYK	cmyk(68.6%, 67.3%, 0%, 40%)
CIE-LAB	lab(27.32, 33.37, -56.47)
CIE-LCH	lch(27.32, 65.59, 300.58°)
OKLab	oklab(38.72% 0.0137 -0.163)
OKLCH	oklch(38.72% 0.164 274.8)
XYZ	xyz(8.1074, 5.2088, 30.7090)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303299 #999730

analogous

#306799 #303299 #633099

triadic

#303299 #993032 #329930

tetradic

#303299 #993067 #999730 #309963

square

#303299 #993067 #999730 #309963

split-complementary

#303299 #996330 #679930

monochromatic

#13143C #21236A #303299 #4245C4 #7173D2

Accessibility & contrast

On white

10.29

#303299 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#303299 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303299

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303299	#FFFFFF	#000000	##FFFFFF
##303299	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459C

Deuteranopia (green-blind)

#003C97

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #303299;
/* rgb */ color: rgb(48, 50, 153);
/* oklch */ color: oklch(38.7% 0.164 274.8);

Tailwind

colors: {
  custom: {
    50: '#776ab8',
    500: '#303299',
    950: '#000000',
  },
}

SCSS

$custom: #303299;
$custom-light: #776ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#303299",
  "rgb": {
    "r": 48,
    "g": 50,
    "b": 153
  },
  "hsl": {
    "h": 238.857,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.38722,
    "c": 0.16359,
    "h": 274.8
  },
  "luminance": 0.05209
}

Semantic roles & 50–950 ramp

primary

#303299

secondary

#BAB96B

accent

#D94CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #303299

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

Preview Lab → · Contrast checker → · Palette generator →