#330307#330307

#330307 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.8% C 0.076 H 21.7°. Best body text is #FFFFFF at 18.15:1 contrast (WCAG AA passes).

Color values

HEX	#330307
RGB	rgb(51, 3, 7)
HSL	hsl(355, 89%, 11%)
HSV	hsv(355, 94%, 20%)
CMYK	cmyk(0%, 94.1%, 86.3%, 80%)
CIE-LAB	lab(7.09, 24.11, 8.26)
CIE-LCH	lch(7.09, 25.48, 18.91°)
OKLab	oklab(20.82% 0.071 0.0283)
OKLCH	oklch(20.82% 0.076 21.7)
XYZ	xyz(1.4363, 0.7845, 0.2768)
Luminance	0.0078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330307 #03332F

analogous

#33031F #330307 #331703

triadic

#330307 #073303 #030733

tetradic

#330307 #1F3303 #03332F #170333

square

#330307 #1F3303 #03332F #170333

split-complementary

#330307 #033317 #031F33

monochromatic

#1D0204 #1D0204 #330307 #6D060F #A70A17

Accessibility & contrast

On white

18.15

#330307 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#330307 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330307

18.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330307	#FFFFFF	#000000	##FFFFFF
##330307	1.00	18.15	1.16	18.15
#FFFFFF	18.15	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#110F07

Deuteranopia (green-blind)

#1D1906

Tritanopia (blue-blind)

#390005

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #330307;
/* rgb */ color: rgb(51, 3, 7);
/* oklch */ color: oklch(20.8% 0.076 21.7);

Tailwind

colors: {
  custom: {
    50: '#6f484a',
    500: '#330307',
    950: '#000000',
  },
}

SCSS

$custom: #330307;
$custom-light: #6f484a;
$custom-dark: #000000;

JSON

{
  "hex": "#330307",
  "rgb": {
    "r": 51,
    "g": 3,
    "b": 7
  },
  "hsl": {
    "h": 355,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20815,
    "c": 0.07645,
    "h": 21.7
  },
  "luminance": 0.00784
}

Semantic roles & 50–950 ramp

primary

#330307

secondary

#1C766F

accent

#FFED29

background

#F7F4F4

surface

#EDE6E7

border

#C8C2C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #330307

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

Preview Lab → · Contrast checker → · Palette generator →