#3F290B#3F290B

#3F290B is a dark, muted orange. Relative luminance 0.027; OKLCH L 30.1% C 0.054 H 71.2°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F290B
RGB	rgb(63, 41, 11)
HSL	hsl(35, 70%, 15%)
HSV	hsv(35, 83%, 25%)
CMYK	cmyk(0%, 34.9%, 82.5%, 75.3%)
CIE-LAB	lab(18.66, 6.91, 22.46)
CIE-LCH	lch(18.66, 23.50, 72.89°)
OKLab	oklab(30.13% 0.0175 0.0512)
OKLCH	oklch(30.13% 0.054 71.2)
XYZ	xyz(2.9034, 2.6670, 0.6784)
Luminance	0.0267 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F290B #0B213F

analogous

#3F0F0B #3F290B #3B3F0B

triadic

#3F290B #0B3F29 #290B3F

tetradic

#3F290B #0B3F0F #0B213F #3F0B3B

square

#3F290B #0B3F0F #0B213F #3F0B3B

split-complementary

#3F290B #0B3B3F #0F0B3F

monochromatic

#1A1105 #1A1105 #3F290B #734B14 #A76D1D

Accessibility & contrast

On white

13.70

#3F290B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#3F290B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F290B

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F290B	#FFFFFF	#000000	##FFFFFF
##3F290B	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312A07

Deuteranopia (green-blind)

#36300C

Tritanopia (blue-blind)

#452423

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #3f290b;
/* rgb */ color: rgb(63, 41, 11);
/* oklch */ color: oklch(30.1% 0.054 71.2);

Tailwind

colors: {
  custom: {
    50: '#77624c',
    500: '#3f290b',
    950: '#000000',
  },
}

SCSS

$custom: #3f290b;
$custom-light: #77624c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f290b",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 11
  },
  "hsl": {
    "h": 34.615,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.30132,
    "c": 0.05413,
    "h": 71.2
  },
  "luminance": 0.02667
}

Semantic roles & 50–950 ramp

primary

#3F290B

secondary

#2A4D7C

accent

#86ED3B

background

#F7F5F4

surface

#EDEAE7

border

#C8C6C3

text

#090501

muted

#7B7977

Preview Lab

Preview with #3F290B

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

Preview Lab → · Contrast checker → · Palette generator →