#3B030B#3B030B

#3B030B is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.7% C 0.085 H 19.3°. Best body text is #FFFFFF at 17.44:1 contrast (WCAG AA passes).

Color values

HEX	#3B030B
RGB	rgb(59, 3, 11)
HSL	hsl(351, 90%, 12%)
HSV	hsv(351, 95%, 23%)
CMYK	cmyk(0%, 94.9%, 81.4%, 76.9%)
CIE-LAB	lab(9.15, 27.21, 9.87)
CIE-LCH	lch(9.15, 28.94, 19.93°)
OKLab	oklab(22.75% 0.0803 0.0281)
OKLCH	oklch(22.75% 0.085 19.3)
XYZ	xyz(1.8968, 1.0194, 0.4134)
Luminance	0.0102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B030B #033B33

analogous

#3B0327 #3B030B #3B1703

triadic

#3B030B #0B3B03 #030B3B

tetradic

#3B030B #273B03 #033B33 #17033B

square

#3B030B #273B03 #033B33 #17033B

split-complementary

#3B030B #033B17 #03273B

monochromatic

#1D0105 #1D0105 #3B030B #750616 #AF0921

Accessibility & contrast

On white

17.44

#3B030B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#3B030B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B030B

17.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B030B	#FFFFFF	#000000	##FFFFFF
##3B030B	1.00	17.44	1.20	17.44
#FFFFFF	17.44	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14120B

Deuteranopia (green-blind)

#221E09

Tritanopia (blue-blind)

#420006

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b030b;
/* rgb */ color: rgb(59, 3, 11);
/* oklch */ color: oklch(22.7% 0.085 19.3);

Tailwind

colors: {
  custom: {
    50: '#764a4b',
    500: '#3b030b',
    950: '#000000',
  },
}

SCSS

$custom: #3b030b;
$custom-light: #764a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#3b030b",
  "rgb": {
    "r": 59,
    "g": 3,
    "b": 11
  },
  "hsl": {
    "h": 351.429,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22748,
    "c": 0.0851,
    "h": 19.3
  },
  "luminance": 0.01019
}

Semantic roles & 50–950 ramp

primary

#3B030B

secondary

#1C7E70

accent

#FFE029

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3B030B

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

Preview Lab → · Contrast checker → · Palette generator →