#2A100F#2A100F

#2A100F is a very dark, muted red. Relative luminance 0.009; OKLCH L 21.3% C 0.044 H 23.7°. Best body text is #FFFFFF at 17.81:1 contrast (WCAG AA passes).

Color values

HEX	#2A100F
RGB	rgb(42, 16, 15)
HSL	hsl(2, 47%, 11%)
HSV	hsv(2, 64%, 16%)
CMYK	cmyk(0%, 61.9%, 64.3%, 83.5%)
CIE-LAB	lab(8.11, 13.37, 5.96)
CIE-LCH	lch(8.11, 14.64, 24.02°)
OKLab	oklab(21.29% 0.0399 0.0175)
OKLCH	oklch(21.29% 0.044 23.7)
XYZ	xyz(1.2264, 0.8974, 0.5605)
Luminance	0.0090 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A100F #0F292A

analogous

#2A0F1B #2A100F #2A1D0F

triadic

#2A100F #0F2A10 #100F2A

tetradic

#2A100F #1B2A0F #0F292A #1D0F2A

square

#2A100F #1B2A0F #0F292A #1D0F2A

split-complementary

#2A100F #0F2A1D #0F1B2A

monochromatic

#170908 #170908 #2A100F #57211F #84322F

Accessibility & contrast

On white

17.81

#2A100F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#2A100F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A100F

17.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A100F	#FFFFFF	#000000	##FFFFFF
##2A100F	1.00	17.81	1.18	17.81
#FFFFFF	17.81	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140F

Deuteranopia (green-blind)

#1C1A0E

Tritanopia (blue-blind)

#2E0C10

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #2a100f;
/* rgb */ color: rgb(42, 16, 15);
/* oklch */ color: oklch(21.3% 0.044 23.7);

Tailwind

colors: {
  custom: {
    50: '#654e4e',
    500: '#2a100f',
    950: '#000000',
  },
}

SCSS

$custom: #2a100f;
$custom-light: #654e4e;
$custom-dark: #000000;

JSON

{
  "hex": "#2a100f",
  "rgb": {
    "r": 42,
    "g": 16,
    "b": 15
  },
  "hsl": {
    "h": 2.222,
    "s": 47.368,
    "l": 11.176
  },
  "oklch": {
    "l": 0.21292,
    "c": 0.04356,
    "h": 23.7
  },
  "luminance": 0.00897
}

Semantic roles & 50–950 ramp

primary

#2A100F

secondary

#326163

accent

#D2D751

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#060101

muted

#7A7777

Preview Lab

Preview with #2A100F

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

Preview Lab → · Contrast checker → · Palette generator →