#3F100E#3F100E

#3F100E is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.3% C 0.074 H 26.2°. Best body text is #FFFFFF at 16.26:1 contrast (WCAG AA passes).

Color values

HEX	#3F100E
RGB	rgb(63, 16, 14)
HSL	hsl(2, 64%, 15%)
HSV	hsv(2, 78%, 25%)
CMYK	cmyk(0%, 74.6%, 77.8%, 75.3%)
CIE-LAB	lab(12.35, 22.74, 13.06)
CIE-LCH	lch(12.35, 26.23, 29.87°)
OKLab	oklab(25.31% 0.0663 0.0327)
OKLCH	oklch(25.31% 0.074 26.2)
XYZ	xyz(2.3147, 1.4594, 0.5752)
Luminance	0.0146 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F100E #0E3D3F

analogous

#3F0E24 #3F100E #3F280E

triadic

#3F100E #0E3F10 #100E3F

tetradic

#3F100E #243F0E #0E3D3F #280E3F

square

#3F100E #243F0E #0E3D3F #280E3F

split-complementary

#3F100E #0E3F28 #0E243F

monochromatic

#190606 #190606 #3F100E #711D19 #A32924

Accessibility & contrast

On white

16.26

#3F100E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#3F100E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F100E

16.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F100E	#FFFFFF	#000000	##FFFFFF
##3F100E	1.00	16.26	1.29	16.26
#FFFFFF	16.26	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1A0D

Deuteranopia (green-blind)

#29240D

Tritanopia (blue-blind)

#460510

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3f100e;
/* rgb */ color: rgb(63, 16, 14);
/* oklch */ color: oklch(25.3% 0.074 26.2);

Tailwind

colors: {
  custom: {
    50: '#78514d',
    500: '#3f100e',
    950: '#000000',
  },
}

SCSS

$custom: #3f100e;
$custom-light: #78514d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f100e",
  "rgb": {
    "r": 63,
    "g": 16,
    "b": 14
  },
  "hsl": {
    "h": 2.449,
    "s": 63.636,
    "l": 15.098
  },
  "oklch": {
    "l": 0.25311,
    "c": 0.07386,
    "h": 26.2
  },
  "luminance": 0.01459
}

Semantic roles & 50–950 ramp

primary

#3F100E

secondary

#2F777A

accent

#E0E741

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F100E

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

Preview Lab → · Contrast checker → · Palette generator →