#43100B#43100B

#43100B is a dark, moderate red. Relative luminance 0.016; OKLCH L 26.1% C 0.080 H 29.2°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#43100B
RGB	rgb(67, 16, 11)
HSL	hsl(5, 72%, 15%)
HSV	hsv(5, 84%, 26%)
CMYK	cmyk(0%, 76.1%, 83.6%, 73.7%)
CIE-LAB	lab(13.16, 24.20, 15.70)
CIE-LCH	lch(13.16, 28.85, 32.98°)
OKLab	oklab(26.07% 0.0695 0.0388)
OKLCH	oklch(26.07% 0.08 29.2)
XYZ	xyz(2.5607, 1.5884, 0.4883)
Luminance	0.0159 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43100B #0B3E43

analogous

#430B22 #43100B #432C0B

triadic

#43100B #0B4310 #100B43

tetradic

#43100B #22430B #0B3E43 #2C0B43

square

#43100B #22430B #0B3E43 #2C0B43

split-complementary

#43100B #0B432C #0B2243

monochromatic

#1A0604 #1A0604 #43100B #781D14 #AC291C

Accessibility & contrast

On white

15.94

#43100B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#43100B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #43100B

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43100B	#FFFFFF	#000000	##FFFFFF
##43100B	1.00	15.94	1.32	15.94
#FFFFFF	15.94	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1B0A

Deuteranopia (green-blind)

#2B2609

Tritanopia (blue-blind)

#4B030F

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #43100b;
/* rgb */ color: rgb(67, 16, 11);
/* oklch */ color: oklch(26.1% 0.080 29.2);

Tailwind

colors: {
  custom: {
    50: '#7c524b',
    500: '#43100b',
    950: '#000000',
  },
}

SCSS

$custom: #43100b;
$custom-light: #7c524b;
$custom-dark: #000000;

JSON

{
  "hex": "#43100b",
  "rgb": {
    "r": 67,
    "g": 16,
    "b": 11
  },
  "hsl": {
    "h": 5.357,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.26065,
    "c": 0.07965,
    "h": 29.2
  },
  "luminance": 0.01588
}

Semantic roles & 50–950 ramp

primary

#43100B

secondary

#2A7880

accent

#DEEF39

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #43100B

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

Preview Lab → · Contrast checker → · Palette generator →