#400B15#400B15

#400B15 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.0% C 0.081 H 14.7°. Best body text is #FFFFFF at 16.45:1 contrast (WCAG AA passes).

Color values

HEX	#400B15
RGB	rgb(64, 11, 21)
HSL	hsl(349, 71%, 15%)
HSV	hsv(349, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 67.2%, 74.9%)
CIE-LAB	lab(11.85, 26.03, 8.25)
CIE-LCH	lch(11.85, 27.30, 17.59°)
OKLab	oklab(25.03% 0.0782 0.0205)
OKLCH	oklch(25.03% 0.081 14.7)
XYZ	xyz(2.3696, 1.3838, 0.8516)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B15 #0B4036

analogous

#400B30 #400B15 #401B0B

triadic

#400B15 #15400B #0B1540

tetradic

#400B15 #30400B #0B4036 #1B0B40

square

#400B15 #30400B #0B4036 #1B0B40

split-complementary

#400B15 #0B401B #0B3040

monochromatic

#1A0409 #1A0409 #400B15 #741426 #A81D37

Accessibility & contrast

On white

16.45

#400B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B15

16.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B15	#FFFFFF	#000000	##FFFFFF
##400B15	1.00	16.45	1.28	16.45
#FFFFFF	16.45	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191815

Deuteranopia (green-blind)

#272314

Tritanopia (blue-blind)

#47010F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b15;
/* rgb */ color: rgb(64, 11, 21);
/* oklch */ color: oklch(25.0% 0.081 14.7);

Tailwind

colors: {
  custom: {
    50: '#794f52',
    500: '#400b15',
    950: '#000000',
  },
}

SCSS

$custom: #400b15;
$custom-light: #794f52;
$custom-dark: #000000;

JSON

{
  "hex": "#400b15",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 21
  },
  "hsl": {
    "h": 348.679,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25027,
    "c": 0.08082,
    "h": 14.7
  },
  "luminance": 0.01383
}

Semantic roles & 50–950 ramp

primary

#400B15

secondary

#2A7D6D

accent

#EDCC3A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #400B15

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

Preview Lab → · Contrast checker → · Palette generator →