#400A15#400A15

#400A15 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.082 H 14.1°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#400A15
RGB	rgb(64, 10, 21)
HSL	hsl(348, 73%, 15%)
HSV	hsv(348, 84%, 25%)
CMYK	cmyk(0%, 84.4%, 67.2%, 74.9%)
CIE-LAB	lab(11.70, 26.44, 8.04)
CIE-LCH	lch(11.70, 27.64, 16.92°)
OKLab	oklab(24.92% 0.0795 0.02)
OKLCH	oklch(24.92% 0.082 14.1)
XYZ	xyz(2.3585, 1.3616, 0.8479)
Luminance	0.0136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400A15 #0A4035

analogous

#400A30 #400A15 #401A0A

triadic

#400A15 #15400A #0A1540

tetradic

#400A15 #30400A #0A4035 #1A0A40

square

#400A15 #30400A #0A4035 #1A0A40

split-complementary

#400A15 #0A401A #0A3040

monochromatic

#1A0409 #1A0409 #400A15 #751226 #AA1B38

Accessibility & contrast

On white

16.51

#400A15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400A15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400A15

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400A15	#FFFFFF	#000000	##FFFFFF
##400A15	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191815

Deuteranopia (green-blind)

#262314

Tritanopia (blue-blind)

#47000F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400a15;
/* rgb */ color: rgb(64, 10, 21);
/* oklch */ color: oklch(24.9% 0.082 14.1);

Tailwind

colors: {
  custom: {
    50: '#794e52',
    500: '#400a15',
    950: '#000000',
  },
}

SCSS

$custom: #400a15;
$custom-light: #794e52;
$custom-dark: #000000;

JSON

{
  "hex": "#400a15",
  "rgb": {
    "r": 64,
    "g": 10,
    "b": 21
  },
  "hsl": {
    "h": 347.778,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.24916,
    "c": 0.082,
    "h": 14.1
  },
  "luminance": 0.01361
}

Semantic roles & 50–950 ramp

primary

#400A15

secondary

#297D6C

accent

#F0CA38

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #400A15

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

Preview Lab → · Contrast checker → · Palette generator →