#2A100A#2A100A

#2A100A is a very dark, muted red. Relative luminance 0.009; OKLCH L 21.2% C 0.045 H 34.2°. Best body text is #FFFFFF at 17.84:1 contrast (WCAG AA passes).

Color values

HEX#2A100A
RGBrgb(42, 16, 10)
HSLhsl(11, 62%, 10%)
HSVhsv(11, 76%, 16%)
CMYKcmyk(0%, 61.9%, 76.2%, 83.5%)
CIE-LABlab(7.99, 12.85, 8.13)
CIE-LCHlch(7.99, 15.20, 32.34°)
OKLaboklab(21.17% 0.0373 0.0254)
OKLCHoklch(21.17% 0.045 34.2)
XYZxyz(1.1950, 0.8849, 0.3950)
Luminance0.0089 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2A100A #0A242A
analogous
#2A0A14 #2A100A #2A200A
triadic
#2A100A #0A2A10 #100A2A
tetradic
#2A100A #142A0A #0A242A #200A2A
square
#2A100A #142A0A #0A242A #200A2A
split-complementary
#2A100A #0A2A20 #0A142A
monochromatic
#190906 #190906 #2A100A #5B2316 #8D3622

Accessibility & contrast

On white

17.84
#2A100A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.18
#2A100A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A100A
17.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2A100A#FFFFFF#000000##FFFFFF
##2A100A1.0017.841.1817.84
#FFFFFF17.841.0021.001.00
#0000001.1821.001.0021.00
##FFFFFF17.841.0021.001.00

Color blindness preview

Protanopia (red-blind)
#171409
Deuteranopia (green-blind)
#1D1A0A
Tritanopia (blue-blind)
#2F0B0F
Achromatopsia (no color)
#171717

Design tokens & code

CSS
--color: #2a100a;
/* rgb */ color: rgb(42, 16, 10);
/* oklch */ color: oklch(21.2% 0.045 34.2);
Tailwind
colors: {
  custom: {
    50: '#654e4b',
    500: '#2a100a',
    950: '#000000',
  },
}
SCSS
$custom: #2a100a;
$custom-light: #654e4b;
$custom-dark: #000000;
JSON
{
  "hex": "#2a100a",
  "rgb": {
    "r": 42,
    "g": 16,
    "b": 10
  },
  "hsl": {
    "h": 11.25,
    "s": 61.538,
    "l": 10.196
  },
  "oklch": {
    "l": 0.21169,
    "c": 0.04511,
    "h": 34.2
  },
  "luminance": 0.00885
}

Semantic roles & 50–950 ramp

primary
#2A100A
secondary
#295B67
accent
#C6E543
background
#F6F4F4
surface
#EBE7E7
border
#C6C3C3
text
#060101
muted
#7A7777

Preview Lab

Preview with #2A100A

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

Preview Lab → · Contrast checker → · Palette generator →

#2A100A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva