#3F280B#3F280B

#3F280B is a dark, muted orange. Relative luminance 0.026; OKLCH L 29.9% C 0.054 H 68.9°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F280B
RGB	rgb(63, 40, 11)
HSL	hsl(33, 70%, 15%)
HSV	hsv(33, 83%, 25%)
CMYK	cmyk(0%, 36.5%, 82.5%, 75.3%)
CIE-LAB	lab(18.36, 7.58, 22.11)
CIE-LCH	lch(18.36, 23.38, 71.07°)
OKLab	oklab(29.9% 0.0195 0.0506)
OKLCH	oklch(29.9% 0.054 68.9)
XYZ	xyz(2.8693, 2.5988, 0.6670)
Luminance	0.0260 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F280B #0B223F

analogous

#3F0E0B #3F280B #3C3F0B

triadic

#3F280B #0B3F28 #280B3F

tetradic

#3F280B #0B3F0E #0B223F #3F0B3C

square

#3F280B #0B3F0E #0B223F #3F0B3C

split-complementary

#3F280B #0B3C3F #0E0B3F

monochromatic

#1A1105 #1A1105 #3F280B #734914 #A76A1D

Accessibility & contrast

On white

13.82

#3F280B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#3F280B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F280B

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F280B	#FFFFFF	#000000	##FFFFFF
##3F280B	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302A08

Deuteranopia (green-blind)

#352F0C

Tritanopia (blue-blind)

#452222

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #3f280b;
/* rgb */ color: rgb(63, 40, 11);
/* oklch */ color: oklch(29.9% 0.054 68.9);

Tailwind

colors: {
  custom: {
    50: '#77614c',
    500: '#3f280b',
    950: '#000000',
  },
}

SCSS

$custom: #3f280b;
$custom-light: #77614c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f280b",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 11
  },
  "hsl": {
    "h": 33.462,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.29899,
    "c": 0.0542,
    "h": 68.9
  },
  "luminance": 0.02599
}

Semantic roles & 50–950 ramp

primary

#3F280B

secondary

#2A4E7C

accent

#8AED3B

background

#F7F5F4

surface

#EDE9E7

border

#C8C5C3

text

#090501

muted

#7B7977

Preview Lab

Preview with #3F280B

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

Preview Lab → · Contrast checker → · Palette generator →