#40030E#40030E

#40030E is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.9% C 0.090 H 17.8°. Best body text is #FFFFFF at 16.97:1 contrast (WCAG AA passes).

Color values

HEX	#40030E
RGB	rgb(64, 3, 14)
HSL	hsl(349, 91%, 13%)
HSV	hsv(349, 95%, 25%)
CMYK	cmyk(0%, 95.3%, 78.1%, 74.9%)
CIE-LAB	lab(10.46, 29.00, 10.50)
CIE-LCH	lch(10.46, 30.84, 19.90°)
OKLab	oklab(23.95% 0.086 0.0276)
OKLCH	oklch(23.95% 0.09 17.8)
XYZ	xyz(2.2264, 1.1872, 0.5273)
Luminance	0.0119 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40030E #034035

analogous

#40032C #40030E #401603

triadic

#40030E #0E4003 #030E40

tetradic

#40030E #2C4003 #034035 #160340

square

#40030E #2C4003 #034035 #160340

split-complementary

#40030E #034016 #032C40

monochromatic

#1D0106 #1D0106 #40030E #7A061B #B50828

Accessibility & contrast

On white

16.97

#40030E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#40030E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40030E

16.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40030E	#FFFFFF	#000000	##FFFFFF
##40030E	1.00	16.97	1.24	16.97
#FFFFFF	16.97	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140E

Deuteranopia (green-blind)

#25210C

Tritanopia (blue-blind)

#470007

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #40030e;
/* rgb */ color: rgb(64, 3, 14);
/* oklch */ color: oklch(23.9% 0.090 17.8);

Tailwind

colors: {
  custom: {
    50: '#7a4b4d',
    500: '#40030e',
    950: '#000000',
  },
}

SCSS

$custom: #40030e;
$custom-light: #7a4b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#40030e",
  "rgb": {
    "r": 64,
    "g": 3,
    "b": 14
  },
  "hsl": {
    "h": 349.18,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.2395,
    "c": 0.09035,
    "h": 17.8
  },
  "luminance": 0.01187
}

Semantic roles & 50–950 ramp

primary

#40030E

secondary

#1D8270

accent

#FFD829

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #40030E

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

Preview Lab → · Contrast checker → · Palette generator →