#3F180A#3F180A

#3F180A is a dark, moderate orange. Relative luminance 0.017; OKLCH L 26.6% C 0.066 H 39.6°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F180A
RGB	rgb(63, 24, 10)
HSL	hsl(16, 73%, 14%)
HSV	hsv(16, 84%, 25%)
CMYK	cmyk(0%, 61.9%, 84.1%, 75.3%)
CIE-LAB	lab(14.01, 17.96, 17.11)
CIE-LCH	lch(14.01, 24.80, 43.61°)
OKLab	oklab(26.55% 0.0504 0.0418)
OKLCH	oklch(26.55% 0.066 39.6)
XYZ	xyz(2.4316, 1.7323, 0.4934)
Luminance	0.0173 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F180A #0A313F

analogous

#3F0A17 #3F180A #3F330A

triadic

#3F180A #0A3F18 #180A3F

tetradic

#3F180A #173F0A #0A313F #330A3F

square

#3F180A #173F0A #0A313F #330A3F

split-complementary

#3F180A #0A3F33 #0A173F

monochromatic

#1A0A04 #1A0A04 #3F180A #742C12 #A9401B

Accessibility & contrast

On white

15.60

#3F180A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#3F180A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F180A

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F180A	#FFFFFF	#000000	##FFFFFF
##3F180A	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231E08

Deuteranopia (green-blind)

#2C2709

Tritanopia (blue-blind)

#461015

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #3f180a;
/* rgb */ color: rgb(63, 24, 10);
/* oklch */ color: oklch(26.6% 0.066 39.6);

Tailwind

colors: {
  custom: {
    50: '#78564b',
    500: '#3f180a',
    950: '#000000',
  },
}

SCSS

$custom: #3f180a;
$custom-light: #78564b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f180a",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 10
  },
  "hsl": {
    "h": 15.849,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.26551,
    "c": 0.0655,
    "h": 39.6
  },
  "luminance": 0.01732
}

Semantic roles & 50–950 ramp

primary

#3F180A

secondary

#29667C

accent

#BFEF38

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#090301

muted

#7B7877

Preview Lab

Preview with #3F180A

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

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