#400507#400507

#400507 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.088 H 25.3°. Best body text is #FFFFFF at 16.90:1 contrast (WCAG AA passes).

Color values

HEX	#400507
RGB	rgb(64, 5, 7)
HSL	hsl(358, 86%, 14%)
HSV	hsv(358, 92%, 25%)
CMYK	cmyk(0%, 92.2%, 89.1%, 74.9%)
CIE-LAB	lab(10.66, 27.73, 13.82)
CIE-LCH	lch(10.66, 30.98, 26.49°)
OKLab	oklab(24.06% 0.08 0.0378)
OKLCH	oklch(24.06% 0.088 25.3)
XYZ	xyz(2.2072, 1.2142, 0.3191)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400507 #05403E

analogous

#400524 #400507 #402005

triadic

#400507 #074005 #050740

tetradic

#400507 #244005 #05403E #200540

square

#400507 #244005 #05403E #200540

split-complementary

#400507 #054020 #052440

monochromatic

#1C0203 #1C0203 #400507 #79090D #B20E13

Accessibility & contrast

On white

16.90

#400507 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#400507 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400507

16.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400507	#FFFFFF	#000000	##FFFFFF
##400507	1.00	16.90	1.24	16.90
#FFFFFF	16.90	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181506

Deuteranopia (green-blind)

#262105

Tritanopia (blue-blind)

#470006

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #400507;
/* rgb */ color: rgb(64, 5, 7);
/* oklch */ color: oklch(24.1% 0.088 25.3);

Tailwind

colors: {
  custom: {
    50: '#7a4c49',
    500: '#400507',
    950: '#000000',
  },
}

SCSS

$custom: #400507;
$custom-light: #7a4c49;
$custom-dark: #000000;

JSON

{
  "hex": "#400507",
  "rgb": {
    "r": 64,
    "g": 5,
    "b": 7
  },
  "hsl": {
    "h": 357.966,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24059,
    "c": 0.08846,
    "h": 25.3
  },
  "luminance": 0.01214
}

Semantic roles & 50–950 ramp

primary

#400507

secondary

#20817D

accent

#FCF52C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #400507

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

Preview Lab → · Contrast checker → · Palette generator →