#2A0401#2A0401

#2A0401 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 18.7% C 0.066 H 32.3°. Best body text is #FFFFFF at 18.81:1 contrast (WCAG AA passes).

Color values

HEX	#2A0401
RGB	rgb(42, 4, 1)
HSL	hsl(4, 95%, 8%)
HSV	hsv(4, 98%, 16%)
CMYK	cmyk(0%, 90.5%, 97.6%, 83.5%)
CIE-LAB	lab(5.25, 18.10, 7.79)
CIE-LCH	lch(5.25, 19.71, 23.30°)
OKLab	oklab(18.74% 0.0554 0.0351)
OKLCH	oklch(18.74% 0.066 32.3)
XYZ	xyz(1.0039, 0.5814, 0.0881)
Luminance	0.0058 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A0401 #01272A

analogous

#2A0112 #2A0401 #2A1801

triadic

#2A0401 #012A04 #04012A

tetradic

#2A0401 #122A01 #01272A #18012A

square

#2A0401 #122A01 #01272A #18012A

split-complementary

#2A0401 #012A18 #01122A

monochromatic

#1E0301 #1E0301 #2A0401 #660A02 #A20F04

Accessibility & contrast

On white

18.81

#2A0401 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2A0401 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A0401

18.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A0401	#FFFFFF	#000000	##FFFFFF
##2A0401	1.00	18.81	1.12	18.81
#FFFFFF	18.81	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0C01

Deuteranopia (green-blind)

#191500

Tritanopia (blue-blind)

#2F0003

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #2a0401;
/* rgb */ color: rgb(42, 4, 1);
/* oklch */ color: oklch(18.7% 0.066 32.3);

Tailwind

colors: {
  custom: {
    50: '#664847',
    500: '#2a0401',
    950: '#000000',
  },
}

SCSS

$custom: #2a0401;
$custom-light: #664847;
$custom-dark: #000000;

JSON

{
  "hex": "#2a0401",
  "rgb": {
    "r": 42,
    "g": 4,
    "b": 1
  },
  "hsl": {
    "h": 4.39,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.1874,
    "c": 0.06561,
    "h": 32.3
  },
  "luminance": 0.00581
}

Semantic roles & 50–950 ramp

primary

#2A0401

secondary

#166A70

accent

#EFFF29

background

#F6F4F3

surface

#EBE6E5

border

#C6C2C1

text

#060000

muted

#7A7777

Preview Lab

Preview with #2A0401

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

Preview Lab → · Contrast checker → · Palette generator →