#3B0307#3B0307

#3B0307 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.7% C 0.085 H 23.3°. Best body text is #FFFFFF at 17.47:1 contrast (WCAG AA passes).

Color values

HEX	#3B0307
RGB	rgb(59, 3, 7)
HSL	hsl(356, 90%, 12%)
HSV	hsv(356, 95%, 23%)
CMYK	cmyk(0%, 94.9%, 88.1%, 76.9%)
CIE-LAB	lab(9.08, 26.99, 11.40)
CIE-LCH	lch(9.08, 29.30, 22.90°)
OKLab	oklab(22.67% 0.0784 0.0338)
OKLCH	oklch(22.67% 0.085 23.3)
XYZ	xyz(1.8748, 1.0106, 0.2973)
Luminance	0.0101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0307 #033B37

analogous

#3B0323 #3B0307 #3B1B03

triadic

#3B0307 #073B03 #03073B

tetradic

#3B0307 #233B03 #033B37 #1B033B

square

#3B0307 #233B03 #033B37 #1B033B

split-complementary

#3B0307 #033B1B #03233B

monochromatic

#1D0103 #1D0103 #3B0307 #75060E #AF0915

Accessibility & contrast

On white

17.47

#3B0307 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#3B0307 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0307

17.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0307	#FFFFFF	#000000	##FFFFFF
##3B0307	1.00	17.47	1.20	17.47
#FFFFFF	17.47	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141207

Deuteranopia (green-blind)

#221E05

Tritanopia (blue-blind)

#420005

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b0307;
/* rgb */ color: rgb(59, 3, 7);
/* oklch */ color: oklch(22.7% 0.085 23.3);

Tailwind

colors: {
  custom: {
    50: '#764a4a',
    500: '#3b0307',
    950: '#000000',
  },
}

SCSS

$custom: #3b0307;
$custom-light: #764a4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0307",
  "rgb": {
    "r": 59,
    "g": 3,
    "b": 7
  },
  "hsl": {
    "h": 355.714,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22671,
    "c": 0.08539,
    "h": 23.3
  },
  "luminance": 0.0101
}

Semantic roles & 50–950 ramp

primary

#3B0307

secondary

#1C7E77

accent

#FFF029

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3B0307

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

Preview Lab → · Contrast checker → · Palette generator →