#2B0103#2B0103

#2B0103 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 18.4% C 0.072 H 24.2°. Best body text is #FFFFFF at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#2B0103
RGB	rgb(43, 1, 3)
HSL	hsl(357, 95%, 9%)
HSV	hsv(357, 98%, 17%)
CMYK	cmyk(0%, 97.7%, 93%, 83.1%)
CIE-LAB	lab(4.90, 20.35, 6.48)
CIE-LCH	lch(4.90, 21.36, 17.67°)
OKLab	oklab(18.45% 0.0653 0.0293)
OKLCH	oklch(18.45% 0.072 24.2)
XYZ	xyz(1.0237, 0.5420, 0.1369)
Luminance	0.0054 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0103 #012B29

analogous

#2B0118 #2B0103 #2B1401

triadic

#2B0103 #032B01 #01032B

tetradic

#2B0103 #182B01 #012B29 #14012B

square

#2B0103 #182B01 #012B29 #14012B

split-complementary

#2B0103 #012B14 #01182B

monochromatic

#1E0102 #1E0102 #2B0103 #670207 #A3040B

Accessibility & contrast

On white

18.95

#2B0103 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#2B0103 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0103

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0103	#FFFFFF	#000000	##FFFFFF
##2B0103	1.00	18.95	1.11	18.95
#FFFFFF	18.95	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C0A03

Deuteranopia (green-blind)

#181402

Tritanopia (blue-blind)

#310002

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #2b0103;
/* rgb */ color: rgb(43, 1, 3);
/* oklch */ color: oklch(18.4% 0.072 24.2);

Tailwind

colors: {
  custom: {
    50: '#674648',
    500: '#2b0103',
    950: '#000000',
  },
}

SCSS

$custom: #2b0103;
$custom-light: #674648;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0103",
  "rgb": {
    "r": 43,
    "g": 1,
    "b": 3
  },
  "hsl": {
    "h": 357.143,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18445,
    "c": 0.07154,
    "h": 24.2
  },
  "luminance": 0.00542
}

Semantic roles & 50–950 ramp

primary

#2B0103

secondary

#17716D

accent

#FFF529

background

#F6F3F4

surface

#EBE5E6

border

#C6C1C2

text

#060000

muted

#7A7677

Preview Lab

Preview with #2B0103

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

Preview Lab → · Contrast checker → · Palette generator →