#330309#330309

#330309 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.9% C 0.076 H 19.1°. Best body text is #FFFFFF at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#330309
RGB	rgb(51, 3, 9)
HSL	hsl(353, 89%, 11%)
HSV	hsv(353, 94%, 20%)
CMYK	cmyk(0%, 94.1%, 82.4%, 80%)
CIE-LAB	lab(7.13, 24.25, 7.50)
CIE-LCH	lch(7.13, 25.38, 17.19°)
OKLab	oklab(20.86% 0.0721 0.025)
OKLCH	oklch(20.86% 0.076 19.1)
XYZ	xyz(1.4473, 0.7889, 0.3345)
Luminance	0.0079 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330309 #03332D

analogous

#330321 #330309 #331503

triadic

#330309 #093303 #030933

tetradic

#330309 #213303 #03332D #150333

square

#330309 #213303 #03332D #150333

split-complementary

#330309 #033315 #032133

monochromatic

#1D0205 #1D0205 #330309 #6D0613 #A70A1D

Accessibility & contrast

On white

18.14

#330309 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#330309 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330309

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330309	#FFFFFF	#000000	##FFFFFF
##330309	1.00	18.14	1.16	18.14
#FFFFFF	18.14	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#110F09

Deuteranopia (green-blind)

#1D1908

Tritanopia (blue-blind)

#390005

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #330309;
/* rgb */ color: rgb(51, 3, 9);
/* oklch */ color: oklch(20.9% 0.076 19.1);

Tailwind

colors: {
  custom: {
    50: '#6f484b',
    500: '#330309',
    950: '#000000',
  },
}

SCSS

$custom: #330309;
$custom-light: #6f484b;
$custom-dark: #000000;

JSON

{
  "hex": "#330309",
  "rgb": {
    "r": 51,
    "g": 3,
    "b": 9
  },
  "hsl": {
    "h": 352.5,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20861,
    "c": 0.07632,
    "h": 19.1
  },
  "luminance": 0.00789
}

Semantic roles & 50–950 ramp

primary

#330309

secondary

#1C766B

accent

#FFE429

background

#F7F4F4

surface

#EDE6E7

border

#C8C2C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #330309

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

Preview Lab → · Contrast checker → · Palette generator →