#400510#400510

#400510 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.2% C 0.088 H 16.9°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#400510
RGB	rgb(64, 5, 16)
HSL	hsl(349, 86%, 14%)
HSV	hsv(349, 92%, 25%)
CMYK	cmyk(0%, 92.2%, 75%, 74.9%)
CIE-LAB	lab(10.82, 28.21, 9.94)
CIE-LCH	lch(10.82, 29.91, 19.41°)
OKLab	oklab(24.23% 0.0841 0.0255)
OKLCH	oklch(24.23% 0.088 16.9)
XYZ	xyz(2.2624, 1.2363, 0.6096)
Luminance	0.0124 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400510 #054035

analogous

#40052D #400510 #401705

triadic

#400510 #104005 #051040

tetradic

#400510 #2D4005 #054035 #170540

square

#400510 #2D4005 #054035 #170540

split-complementary

#400510 #054017 #052D40

monochromatic

#1C0207 #1C0207 #400510 #79091E #B20E2C

Accessibility & contrast

On white

16.84

#400510 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#400510 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400510

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400510	#FFFFFF	#000000	##FFFFFF
##400510	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171510

Deuteranopia (green-blind)

#26220E

Tritanopia (blue-blind)

#470009

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #400510;
/* rgb */ color: rgb(64, 5, 16);
/* oklch */ color: oklch(24.2% 0.088 16.9);

Tailwind

colors: {
  custom: {
    50: '#7a4c4e',
    500: '#400510',
    950: '#000000',
  },
}

SCSS

$custom: #400510;
$custom-light: #7a4c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#400510",
  "rgb": {
    "r": 64,
    "g": 5,
    "b": 16
  },
  "hsl": {
    "h": 348.814,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24229,
    "c": 0.08784,
    "h": 16.9
  },
  "luminance": 0.01236
}

Semantic roles & 50–950 ramp

primary

#400510

secondary

#20816F

accent

#FCD52C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #400510

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

Preview Lab → · Contrast checker → · Palette generator →