#521F0B#521F0B

#521F0B is a dark, moderate orange. Relative luminance 0.028; OKLCH L 31.2% C 0.082 H 40.4°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#521F0B
RGB	rgb(82, 31, 11)
HSL	hsl(17, 76%, 18%)
HSV	hsv(17, 87%, 32%)
CMYK	cmyk(0%, 62.2%, 86.6%, 67.8%)
CIE-LAB	lab(19.22, 22.56, 23.92)
CIE-LCH	lch(19.22, 32.88, 46.68°)
OKLab	oklab(31.21% 0.0627 0.0533)
OKLCH	oklch(31.21% 0.082 40.4)
XYZ	xyz(4.0305, 2.7985, 0.6445)
Luminance	0.0280 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#521F0B #0B3E52

analogous

#520B1B #521F0B #52420B

triadic

#521F0B #0B521F #1F0B52

tetradic

#521F0B #1B520B #0B3E52 #420B52

square

#521F0B #1B520B #0B3E52 #420B52

split-complementary

#521F0B #0B5242 #0B1B52

monochromatic

#1B0A04 #1C0B04 #521F0B #883312 #BE4819

Accessibility & contrast

On white

13.46

#521F0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#521F0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #521F0B

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##521F0B	#FFFFFF	#000000	##FFFFFF
##521F0B	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2808

Deuteranopia (green-blind)

#3A3309

Tritanopia (blue-blind)

#5B131B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #521f0b;
/* rgb */ color: rgb(82, 31, 11);
/* oklch */ color: oklch(31.2% 0.082 40.4);

Tailwind

colors: {
  custom: {
    50: '#885c4c',
    500: '#521f0b',
    950: '#000000',
  },
}

SCSS

$custom: #521f0b;
$custom-light: #885c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#521f0b",
  "rgb": {
    "r": 82,
    "g": 31,
    "b": 11
  },
  "hsl": {
    "h": 16.901,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.3121,
    "c": 0.08227,
    "h": 40.4
  },
  "luminance": 0.02798
}

Semantic roles & 50–950 ramp

primary

#521F0B

secondary

#2B728E

accent

#BDF335

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #521F0B

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

Preview Lab → · Contrast checker → · Palette generator →