#400C0C#400C0C

#400C0C is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.080 H 25.1°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#400C0C
RGB	rgb(64, 12, 12)
HSL	hsl(0, 68%, 15%)
HSV	hsv(0, 81%, 25%)
CMYK	cmyk(0%, 81.2%, 81.2%, 74.9%)
CIE-LAB	lab(11.82, 24.96, 13.34)
CIE-LCH	lch(11.82, 28.30, 28.13°)
OKLab	oklab(24.95% 0.0726 0.0341)
OKLCH	oklch(24.95% 0.08 25.1)
XYZ	xyz(2.3124, 1.3798, 0.4923)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400C0C #0C4040

analogous

#400C26 #400C0C #40260C

triadic

#400C0C #0C400C #0C0C40

tetradic

#400C0C #26400C #0C4040 #260C40

square

#400C0C #26400C #0C4040 #260C40

split-complementary

#400C0C #0C4026 #0C2640

monochromatic

#1A0505 #1A0505 #400C0C #741616 #A71F1F

Accessibility & contrast

On white

16.46

#400C0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400C0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400C0C

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400C0C	#FFFFFF	#000000	##FFFFFF
##400C0C	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180B

Deuteranopia (green-blind)

#28230A

Tritanopia (blue-blind)

#47000D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400c0c;
/* rgb */ color: rgb(64, 12, 12);
/* oklch */ color: oklch(24.9% 0.080 25.1);

Tailwind

colors: {
  custom: {
    50: '#7a4f4c',
    500: '#400c0c',
    950: '#000000',
  },
}

SCSS

$custom: #400c0c;
$custom-light: #7a4f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#400c0c",
  "rgb": {
    "r": 64,
    "g": 12,
    "b": 12
  },
  "hsl": {
    "h": 0,
    "s": 68.421,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24948,
    "c": 0.08018,
    "h": 25.1
  },
  "luminance": 0.01379
}

Semantic roles & 50–950 ramp

primary

#400C0C

secondary

#2C7C7C

accent

#EBEB3D

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400C0C

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

Preview Lab → · Contrast checker → · Palette generator →