#3A0307#3A0307

#3A0307 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.4% C 0.084 H 23.1°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#3A0307
RGB	rgb(58, 3, 7)
HSL	hsl(356, 90%, 12%)
HSV	hsv(356, 95%, 23%)
CMYK	cmyk(0%, 94.8%, 87.9%, 77.3%)
CIE-LAB	lab(8.83, 26.66, 11.00)
CIE-LCH	lch(8.83, 28.84, 22.43°)
OKLab	oklab(22.44% 0.0775 0.0331)
OKLCH	oklch(22.44% 0.084 23.1)
XYZ	xyz(1.8161, 0.9803, 0.2946)
Luminance	0.0098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A0307 #033A36

analogous

#3A0323 #3A0307 #3A1B03

triadic

#3A0307 #073A03 #03073A

tetradic

#3A0307 #233A03 #033A36 #1B033A

square

#3A0307 #233A03 #033A36 #1B033A

split-complementary

#3A0307 #033A1B #03233A

monochromatic

#1D0204 #1D0204 #3A0307 #74060E #AE0915

Accessibility & contrast

On white

17.56

#3A0307 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#3A0307 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A0307

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A0307	#FFFFFF	#000000	##FFFFFF
##3A0307	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141107

Deuteranopia (green-blind)

#221D05

Tritanopia (blue-blind)

#410005

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #3a0307;
/* rgb */ color: rgb(58, 3, 7);
/* oklch */ color: oklch(22.4% 0.084 23.1);

Tailwind

colors: {
  custom: {
    50: '#75494a',
    500: '#3a0307',
    950: '#000000',
  },
}

SCSS

$custom: #3a0307;
$custom-light: #75494a;
$custom-dark: #000000;

JSON

{
  "hex": "#3a0307",
  "rgb": {
    "r": 58,
    "g": 3,
    "b": 7
  },
  "hsl": {
    "h": 355.636,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.2244,
    "c": 0.08429,
    "h": 23.1
  },
  "luminance": 0.0098
}

Semantic roles & 50–950 ramp

primary

#3A0307

secondary

#1C7D76

accent

#FFEF29

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3A0307

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

Preview Lab → · Contrast checker → · Palette generator →