#330B05#330B05

#330B05 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.0% C 0.066 H 32.3°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#330B05
RGB	rgb(51, 11, 5)
HSL	hsl(8, 82%, 11%)
HSV	hsv(8, 90%, 20%)
CMYK	cmyk(0%, 78.4%, 90.2%, 80%)
CIE-LAB	lab(8.60, 19.71, 11.29)
CIE-LCH	lch(8.60, 22.71, 29.80°)
OKLab	oklab(21.96% 0.056 0.0354)
OKLCH	oklch(21.96% 0.066 32.3)
XYZ	xyz(1.5125, 0.9543, 0.2481)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330B05 #052D33

analogous

#330516 #330B05 #332205

triadic

#330B05 #05330B #0B0533

tetradic

#330B05 #163305 #052D33 #220533

square

#330B05 #163305 #052D33 #220533

split-complementary

#330B05 #053322 #051633

monochromatic

#1C0603 #1C0603 #330B05 #6B170A #A22310

Accessibility & contrast

On white

17.64

#330B05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#330B05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330B05

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330B05	#FFFFFF	#000000	##FFFFFF
##330B05	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161304

Deuteranopia (green-blind)

#201C04

Tritanopia (blue-blind)

#39020A

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #330b05;
/* rgb */ color: rgb(51, 11, 5);
/* oklch */ color: oklch(22.0% 0.066 32.3);

Tailwind

colors: {
  custom: {
    50: '#6e4c49',
    500: '#330b05',
    950: '#000000',
  },
}

SCSS

$custom: #330b05;
$custom-light: #6e4c49;
$custom-dark: #000000;

JSON

{
  "hex": "#330b05",
  "rgb": {
    "r": 51,
    "g": 11,
    "b": 5
  },
  "hsl": {
    "h": 7.826,
    "s": 82.143,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21963,
    "c": 0.06619,
    "h": 32.3
  },
  "luminance": 0.00954
}

Semantic roles & 50–950 ramp

primary

#330B05

secondary

#1F6974

accent

#DEF82F

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #330B05

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

Preview Lab → · Contrast checker → · Palette generator →