#2A040B#2A040B

#2A040B is a very dark, moderate red. Relative luminance 0.006; OKLCH L 19.0% C 0.064 H 13.7°. Best body text is #FFFFFF at 18.74:1 contrast (WCAG AA passes).

Color values

HEX	#2A040B
RGB	rgb(42, 4, 11)
HSL	hsl(349, 83%, 9%)
HSV	hsv(349, 90%, 16%)
CMYK	cmyk(0%, 90.5%, 73.8%, 83.5%)
CIE-LAB	lab(5.45, 19.21, 4.00)
CIE-LCH	lch(5.45, 19.62, 11.76°)
OKLab	oklab(19.02% 0.0621 0.0152)
OKLCH	oklch(19.02% 0.064 13.7)
XYZ	xyz(1.0588, 0.6034, 0.3773)
Luminance	0.0060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A040B #042A23

analogous

#2A041E #2A040B #2A1004

triadic

#2A040B #0B2A04 #040B2A

tetradic

#2A040B #1E2A04 #042A23 #10042A

square

#2A040B #1E2A04 #042A23 #10042A

split-complementary

#2A040B #042A10 #041E2A

monochromatic

#1C0307 #1C0307 #2A040B #62091A #9A0F28

Accessibility & contrast

On white

18.74

#2A040B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2A040B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A040B

18.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A040B	#FFFFFF	#000000	##FFFFFF
##2A040B	1.00	18.74	1.12	18.74
#FFFFFF	18.74	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0D0B

Deuteranopia (green-blind)

#17150A

Tritanopia (blue-blind)

#2F0006

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2a040b;
/* rgb */ color: rgb(42, 4, 11);
/* oklch */ color: oklch(19.0% 0.064 13.7);

Tailwind

colors: {
  custom: {
    50: '#66484c',
    500: '#2a040b',
    950: '#000000',
  },
}

SCSS

$custom: #2a040b;
$custom-light: #66484c;
$custom-dark: #000000;

JSON

{
  "hex": "#2a040b",
  "rgb": {
    "r": 42,
    "g": 4,
    "b": 11
  },
  "hsl": {
    "h": 348.947,
    "s": 82.609,
    "l": 9.02
  },
  "oklch": {
    "l": 0.19016,
    "c": 0.06394,
    "h": 13.7
  },
  "luminance": 0.00603
}

Semantic roles & 50–950 ramp

primary

#2A040B

secondary

#1D6D5E

accent

#F9D42F

background

#F6F4F4

surface

#EBE6E7

border

#C6C2C3

text

#060001

muted

#7A7777

Preview Lab

Preview with #2A040B

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

Preview Lab → · Contrast checker → · Palette generator →