#38100A#38100A

#38100A is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.065 H 31.0°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#38100A
RGB	rgb(56, 16, 10)
HSL	hsl(8, 70%, 13%)
HSV	hsv(8, 82%, 22%)
CMYK	cmyk(0%, 71.4%, 82.1%, 78%)
CIE-LAB	lab(10.80, 19.48, 12.52)
CIE-LCH	lch(10.80, 23.16, 32.73°)
OKLab	oklab(23.85% 0.056 0.0336)
OKLCH	oklch(23.85% 0.065 31)
XYZ	xyz(1.8712, 1.2335, 0.4267)
Luminance	0.0123 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#38100A #0A3238

analogous

#380A1B #38100A #38270A

triadic

#38100A #0A3810 #100A38

tetradic

#38100A #1B380A #0A3238 #270A38

square

#38100A #1B380A #0A3238 #270A38

split-complementary

#38100A #0A3827 #0A1B38

monochromatic

#1A0705 #1A0705 #38100A #6C1F13 #A02E1D

Accessibility & contrast

On white

16.85

#38100A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#38100A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #38100A

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##38100A	#FFFFFF	#000000	##FFFFFF
##38100A	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1809

Deuteranopia (green-blind)

#252009

Tritanopia (blue-blind)

#3E070F

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #38100a;
/* rgb */ color: rgb(56, 16, 10);
/* oklch */ color: oklch(23.8% 0.065 31.0);

Tailwind

colors: {
  custom: {
    50: '#72504b',
    500: '#38100a',
    950: '#000000',
  },
}

SCSS

$custom: #38100a;
$custom-light: #72504b;
$custom-dark: #000000;

JSON

{
  "hex": "#38100a",
  "rgb": {
    "r": 56,
    "g": 16,
    "b": 10
  },
  "hsl": {
    "h": 7.826,
    "s": 69.697,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23848,
    "c": 0.06535,
    "h": 31
  },
  "luminance": 0.01233
}

Semantic roles & 50–950 ramp

primary

#38100A

secondary

#286B75

accent

#D5ED3B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #38100A

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

Preview Lab → · Contrast checker → · Palette generator →