#3F331B#3F331B

#3F331B is a dark, muted orange. Relative luminance 0.035; OKLCH L 32.8% C 0.041 H 83.6°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F331B
RGB	rgb(63, 51, 27)
HSL	hsl(40, 40%, 18%)
HSV	hsv(40, 57%, 25%)
CMYK	cmyk(0%, 19%, 57.1%, 75.3%)
CIE-LAB	lab(21.96, 1.65, 17.16)
CIE-LCH	lch(21.96, 17.24, 84.52°)
OKLab	oklab(32.78% 0.0046 0.0412)
OKLCH	oklch(32.78% 0.041 83.6)
XYZ	xyz(3.4317, 3.5037, 1.5322)
Luminance	0.0350 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F331B #1B273F

analogous

#3F211B #3F331B #393F1B

triadic

#3F331B #1B3F33 #331B3F

tetradic

#3F331B #1B3F21 #1B273F #3F1B39

square

#3F331B #1B3F21 #1B273F #3F1B39

split-complementary

#3F331B #1B393F #211B3F

monochromatic

#151109 #151109 #3F331B #6A562D #957840

Accessibility & contrast

On white

12.35

#3F331B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#3F331B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F331B

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F331B	#FFFFFF	#000000	##FFFFFF
##3F331B	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383319

Deuteranopia (green-blind)

#3B361C

Tritanopia (blue-blind)

#442F2D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #3f331b;
/* rgb */ color: rgb(63, 51, 27);
/* oklch */ color: oklch(32.8% 0.041 83.6);

Tailwind

colors: {
  custom: {
    50: '#756a58',
    500: '#3f331b',
    950: '#000000',
  },
}

SCSS

$custom: #3f331b;
$custom-light: #756a58;
$custom-dark: #000000;

JSON

{
  "hex": "#3f331b",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 27
  },
  "hsl": {
    "h": 40,
    "s": 40,
    "l": 17.647
  },
  "oklch": {
    "l": 0.32785,
    "c": 0.04147,
    "h": 83.6
  },
  "luminance": 0.03504
}

Semantic roles & 50–950 ramp

primary

#3F331B

secondary

#415274

accent

#80D058

background

#F7F6F5

surface

#EDEBE9

border

#C8C6C5

text

#080603

muted

#7B7A78

Preview Lab

Preview with #3F331B

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

Preview Lab → · Contrast checker → · Palette generator →