#513B0B#513B0B

#513B0B is a dark, moderate orange. Relative luminance 0.049; OKLCH L 36.8% C 0.069 H 82.1°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#513B0B
RGB	rgb(81, 59, 11)
HSL	hsl(41, 76%, 18%)
HSV	hsv(41, 86%, 32%)
CMYK	cmyk(0%, 27.2%, 86.4%, 68.2%)
CIE-LAB	lab(26.45, 4.58, 31.33)
CIE-LCH	lch(26.45, 31.67, 81.68°)
OKLab	oklab(36.77% 0.0094 0.0681)
OKLCH	oklch(36.77% 0.069 82.1)
XYZ	xyz(5.0180, 4.9018, 0.9984)
Luminance	0.0490 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513B0B #0B2151

analogous

#51180B #513B0B #44510B

triadic

#513B0B #0B513B #3B0B51

tetradic

#513B0B #0B5118 #0B2151 #510B44

square

#513B0B #0B5118 #0B2151 #510B44

split-complementary

#513B0B #0B4451 #180B51

monochromatic

#1B1404 #1B1404 #513B0B #876212 #BD891A

Accessibility & contrast

On white

10.60

#513B0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#513B0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513B0B

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513B0B	#FFFFFF	#000000	##FFFFFF
##513B0B	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443B04

Deuteranopia (green-blind)

#49410D

Tritanopia (blue-blind)

#593432

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #513b0b;
/* rgb */ color: rgb(81, 59, 11);
/* oklch */ color: oklch(36.8% 0.069 82.1);

Tailwind

colors: {
  custom: {
    50: '#85704e',
    500: '#513b0b',
    950: '#000000',
  },
}

SCSS

$custom: #513b0b;
$custom-light: #85704e;
$custom-dark: #000000;

JSON

{
  "hex": "#513b0b",
  "rgb": {
    "r": 81,
    "g": 59,
    "b": 11
  },
  "hsl": {
    "h": 41.143,
    "s": 76.087,
    "l": 18.039
  },
  "oklch": {
    "l": 0.36766,
    "c": 0.06872,
    "h": 82.1
  },
  "luminance": 0.04901
}

Semantic roles & 50–950 ramp

primary

#513B0B

secondary

#2B4A8D

accent

#71F335

background

#F8F6F4

surface

#F0ECE7

border

#CBC7C3

text

#0B0702

muted

#7C7A78

Preview Lab

Preview with #513B0B

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

Preview Lab → · Contrast checker → · Palette generator →