#2A0109#2A0109

#2A0109 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 18.4% C 0.070 H 13.3°. Best body text is #FFFFFF at 18.97:1 contrast (WCAG AA passes).

Color values

HEX	#2A0109
RGB	rgb(42, 1, 9)
HSL	hsl(348, 95%, 8%)
HSV	hsv(348, 98%, 16%)
CMYK	cmyk(0%, 97.6%, 78.6%, 83.5%)
CIE-LAB	lab(4.82, 20.36, 3.91)
CIE-LCH	lch(4.82, 20.73, 10.86°)
OKLab	oklab(18.38% 0.0684 0.0162)
OKLCH	oklch(18.38% 0.07 13.3)
XYZ	xyz(1.0151, 0.5338, 0.3080)
Luminance	0.0053 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A0109 #012A22

analogous

#2A011D #2A0109 #2A0D01

triadic

#2A0109 #092A01 #01092A

tetradic

#2A0109 #1D2A01 #012A22 #0D012A

square

#2A0109 #1D2A01 #012A22 #0D012A

split-complementary

#2A0109 #012A0D #011D2A

monochromatic

#1E0106 #1E0106 #2A0109 #660216 #A20423

Accessibility & contrast

On white

18.97

#2A0109 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#2A0109 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A0109

18.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A0109	#FFFFFF	#000000	##FFFFFF
##2A0109	1.00	18.97	1.11	18.97
#FFFFFF	18.97	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B0A09

Deuteranopia (green-blind)

#161408

Tritanopia (blue-blind)

#2F0004

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #2a0109;
/* rgb */ color: rgb(42, 1, 9);
/* oklch */ color: oklch(18.4% 0.070 13.3);

Tailwind

colors: {
  custom: {
    50: '#66464b',
    500: '#2a0109',
    950: '#000000',
  },
}

SCSS

$custom: #2a0109;
$custom-light: #66464b;
$custom-dark: #000000;

JSON

{
  "hex": "#2a0109",
  "rgb": {
    "r": 42,
    "g": 1,
    "b": 9
  },
  "hsl": {
    "h": 348.293,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.18376,
    "c": 0.07025,
    "h": 13.3
  },
  "luminance": 0.00534
}

Semantic roles & 50–950 ramp

primary

#2A0109

secondary

#16705F

accent

#FFD529

background

#F6F3F4

surface

#EBE5E7

border

#C6C1C3

text

#060001

muted

#7A7677

Preview Lab

Preview with #2A0109

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

Preview Lab → · Contrast checker → · Palette generator →