#663B15#663B15

#663B15 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.079 H 58.5°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#663B15
RGB	rgb(102, 59, 21)
HSL	hsl(28, 66%, 24%)
HSV	hsv(28, 79%, 40%)
CMYK	cmyk(0%, 42.2%, 79.4%, 60%)
CIE-LAB	lab(29.43, 15.53, 30.48)
CIE-LCH	lch(29.43, 34.21, 63.00°)
OKLab	oklab(39.74% 0.0414 0.0676)
OKLCH	oklch(39.74% 0.079 58.5)
XYZ	xyz(7.1794, 6.0076, 1.4908)
Luminance	0.0601 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B15 #154066

analogous

#661518 #663B15 #666415

triadic

#663B15 #15663B #3B1566

tetradic

#663B15 #186615 #154066 #641566

square

#663B15 #186615 #154066 #641566

split-complementary

#663B15 #156664 #151866

monochromatic

#190F05 #331E0B #663B15 #99581F #CC762A

Accessibility & contrast

On white

9.54

#663B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B15

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B15	#FFFFFF	#000000	##FFFFFF
##663B15	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F10

Deuteranopia (green-blind)

#524915

Tritanopia (blue-blind)

#703233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663b15;
/* rgb */ color: rgb(102, 59, 21);
/* oklch */ color: oklch(39.7% 0.079 58.5);

Tailwind

colors: {
  custom: {
    50: '#967155',
    500: '#663b15',
    950: '#000000',
  },
}

SCSS

$custom: #663b15;
$custom-light: #967155;
$custom-dark: #000000;

JSON

{
  "hex": "#663b15",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 21
  },
  "hsl": {
    "h": 28.148,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.39739,
    "c": 0.07923,
    "h": 58.5
  },
  "luminance": 0.06007
}

Semantic roles & 50–950 ramp

primary

#663B15

secondary

#3A6E9D

accent

#99E93F

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #663B15

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

Preview Lab → · Contrast checker → · Palette generator →