#3F0410#3F0410

#3F0410 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.9% C 0.088 H 16.0°. Best body text is #FFFFFF at 16.99:1 contrast (WCAG AA passes).

Color values

HEX	#3F0410
RGB	rgb(63, 4, 16)
HSL	hsl(348, 88%, 13%)
HSV	hsv(348, 94%, 25%)
CMYK	cmyk(0%, 93.7%, 74.6%, 75.3%)
CIE-LAB	lab(10.42, 28.34, 9.34)
CIE-LCH	lch(10.42, 29.84, 18.24°)
OKLab	oklab(23.89% 0.0846 0.0243)
OKLCH	oklch(23.89% 0.088 16)
XYZ	xyz(2.1871, 1.1813, 0.6030)
Luminance	0.0118 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0410 #043F33

analogous

#3F042D #3F0410 #3F1504

triadic

#3F0410 #103F04 #04103F

tetradic

#3F0410 #2D3F04 #043F33 #15043F

square

#3F0410 #2D3F04 #043F33 #15043F

split-complementary

#3F0410 #043F15 #042D3F

monochromatic

#1D0207 #1D0207 #3F0410 #79081F #B20B2D

Accessibility & contrast

On white

16.99

#3F0410 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#3F0410 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0410

16.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0410	#FFFFFF	#000000	##FFFFFF
##3F0410	1.00	16.99	1.24	16.99
#FFFFFF	16.99	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161410

Deuteranopia (green-blind)

#25210E

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f0410;
/* rgb */ color: rgb(63, 4, 16);
/* oklch */ color: oklch(23.9% 0.088 16.0);

Tailwind

colors: {
  custom: {
    50: '#794b4e',
    500: '#3f0410',
    950: '#000000',
  },
}

SCSS

$custom: #3f0410;
$custom-light: #794b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0410",
  "rgb": {
    "r": 63,
    "g": 4,
    "b": 16
  },
  "hsl": {
    "h": 347.797,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23889,
    "c": 0.08803,
    "h": 16
  },
  "luminance": 0.01181
}

Semantic roles & 50–950 ramp

primary

#3F0410

secondary

#1E806C

accent

#FED32A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0410

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

Preview Lab → · Contrast checker → · Palette generator →