#3F0F0F#3F0F0F

#3F0F0F is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.2% C 0.075 H 24.3°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#3F0F0F
RGB	rgb(63, 15, 15)
HSL	hsl(0, 62%, 15%)
HSV	hsv(0, 76%, 25%)
CMYK	cmyk(0%, 76.2%, 76.2%, 75.3%)
CIE-LAB	lab(12.18, 23.32, 12.31)
CIE-LCH	lch(12.18, 26.37, 27.83°)
OKLab	oklab(25.19% 0.0683 0.0308)
OKLCH	oklch(25.19% 0.075 24.3)
XYZ	xyz(2.3072, 1.4332, 0.6070)
Luminance	0.0143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0F0F #0F3F3F

analogous

#3F0F27 #3F0F0F #3F270F

triadic

#3F0F0F #0F3F0F #0F0F3F

tetradic

#3F0F0F #273F0F #0F3F3F #270F3F

square

#3F0F0F #273F0F #0F3F3F #270F3F

split-complementary

#3F0F0F #0F3F27 #0F273F

monochromatic

#190606 #190606 #3F0F0F #701B1B #A22727

Accessibility & contrast

On white

16.32

#3F0F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#3F0F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0F0F

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0F0F	#FFFFFF	#000000	##FFFFFF
##3F0F0F	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C190F

Deuteranopia (green-blind)

#28240E

Tritanopia (blue-blind)

#460410

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3f0f0f;
/* rgb */ color: rgb(63, 15, 15);
/* oklch */ color: oklch(25.2% 0.075 24.3);

Tailwind

colors: {
  custom: {
    50: '#78514d',
    500: '#3f0f0f',
    950: '#000000',
  },
}

SCSS

$custom: #3f0f0f;
$custom-light: #78514d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0f0f",
  "rgb": {
    "r": 63,
    "g": 15,
    "b": 15
  },
  "hsl": {
    "h": 0,
    "s": 61.538,
    "l": 15.294
  },
  "oklch": {
    "l": 0.25189,
    "c": 0.07493,
    "h": 24.3
  },
  "luminance": 0.01433
}

Semantic roles & 50–950 ramp

primary

#3F0F0F

secondary

#307979

accent

#E5E543

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0F0F

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

Preview Lab → · Contrast checker → · Palette generator →