#400F0F#400F0F

#400F0F is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.4% C 0.076 H 24.3°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#400F0F
RGB	rgb(64, 15, 15)
HSL	hsl(0, 62%, 15%)
HSV	hsv(0, 77%, 25%)
CMYK	cmyk(0%, 76.6%, 76.6%, 74.9%)
CIE-LAB	lab(12.39, 23.72, 12.64)
CIE-LCH	lch(12.39, 26.88, 28.06°)
OKLab	oklab(25.39% 0.0695 0.0314)
OKLCH	oklch(25.39% 0.076 24.3)
XYZ	xyz(2.3716, 1.4665, 0.6100)
Luminance	0.0147 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400F0F #0F4040

analogous

#400F27 #400F0F #40270F

triadic

#400F0F #0F400F #0F0F40

tetradic

#400F0F #27400F #0F4040 #270F40

square

#400F0F #27400F #0F4040 #270F40

split-complementary

#400F0F #0F4027 #0F2740

monochromatic

#190606 #190606 #400F0F #721B1B #A32626

Accessibility & contrast

On white

16.24

#400F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#400F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400F0F

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400F0F	#FFFFFF	#000000	##FFFFFF
##400F0F	1.00	16.24	1.29	16.24
#FFFFFF	16.24	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1A0F

Deuteranopia (green-blind)

#29240E

Tritanopia (blue-blind)

#470410

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #400f0f;
/* rgb */ color: rgb(64, 15, 15);
/* oklch */ color: oklch(25.4% 0.076 24.3);

Tailwind

colors: {
  custom: {
    50: '#79514d',
    500: '#400f0f',
    950: '#000000',
  },
}

SCSS

$custom: #400f0f;
$custom-light: #79514d;
$custom-dark: #000000;

JSON

{
  "hex": "#400f0f",
  "rgb": {
    "r": 64,
    "g": 15,
    "b": 15
  },
  "hsl": {
    "h": 0,
    "s": 62.025,
    "l": 15.49
  },
  "oklch": {
    "l": 0.25391,
    "c": 0.07623,
    "h": 24.3
  },
  "luminance": 0.01466
}

Semantic roles & 50–950 ramp

primary

#400F0F

secondary

#307A7A

accent

#E5E543

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400F0F

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

Preview Lab → · Contrast checker → · Palette generator →