#3F180E#3F180E

#3F180E is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.6% C 0.064 H 35.5°. Best body text is #FFFFFF at 15.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F180E
RGB	rgb(63, 24, 14)
HSL	hsl(12, 64%, 15%)
HSV	hsv(12, 78%, 25%)
CMYK	cmyk(0%, 61.9%, 77.8%, 75.3%)
CIE-LAB	lab(14.07, 18.21, 15.36)
CIE-LCH	lch(14.07, 23.82, 40.15°)
OKLab	oklab(26.61% 0.0521 0.0372)
OKLCH	oklch(26.61% 0.064 35.5)
XYZ	xyz(2.4560, 1.7420, 0.6223)
Luminance	0.0174 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F180E #0E353F

analogous

#3F0E1C #3F180E #3F300E

triadic

#3F180E #0E3F18 #180E3F

tetradic

#3F180E #1C3F0E #0E353F #300E3F

square

#3F180E #1C3F0E #0E353F #300E3F

split-complementary

#3F180E #0E3F30 #0E1C3F

monochromatic

#190A06 #190A06 #3F180E #712B19 #A33E24

Accessibility & contrast

On white

15.57

#3F180E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#3F180E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F180E

15.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F180E	#FFFFFF	#000000	##FFFFFF
##3F180E	1.00	15.57	1.35	15.57
#FFFFFF	15.57	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221E0D

Deuteranopia (green-blind)

#2C270D

Tritanopia (blue-blind)

#461016

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #3f180e;
/* rgb */ color: rgb(63, 24, 14);
/* oklch */ color: oklch(26.6% 0.064 35.5);

Tailwind

colors: {
  custom: {
    50: '#78564d',
    500: '#3f180e',
    950: '#000000',
  },
}

SCSS

$custom: #3f180e;
$custom-light: #78564d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f180e",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 14
  },
  "hsl": {
    "h": 12.245,
    "s": 63.636,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26611,
    "c": 0.06399,
    "h": 35.5
  },
  "luminance": 0.01742
}

Semantic roles & 50–950 ramp

primary

#3F180E

secondary

#2F6B7A

accent

#C5E741

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#090301

muted

#7B7877

Preview Lab

Preview with #3F180E

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

Preview Lab → · Contrast checker → · Palette generator →