#66381B#66381B

#66381B is a dark, moderate orange. Relative luminance 0.057; OKLCH L 39.2% C 0.078 H 50.9°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#66381B
RGB	rgb(102, 56, 27)
HSL	hsl(23, 58%, 25%)
HSV	hsv(23, 74%, 40%)
CMYK	cmyk(0%, 45.1%, 73.5%, 60%)
CIE-LAB	lab(28.73, 17.70, 26.46)
CIE-LCH	lch(28.73, 31.83, 56.21°)
OKLab	oklab(39.22% 0.049 0.0603)
OKLCH	oklch(39.22% 0.078 50.9)
XYZ	xyz(7.0921, 5.7330, 1.7698)
Luminance	0.0573 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66381B #1B4966

analogous

#661B23 #66381B #665D1B

triadic

#66381B #1B6638 #381B66

tetradic

#66381B #23661B #1B4966 #5D1B66

square

#66381B #23661B #1B4966 #5D1B66

split-complementary

#66381B #1B665D #1B2366

monochromatic

#180D06 #361D0E #66381B #965328 #C76D35

Accessibility & contrast

On white

9.78

#66381B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#66381B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66381B

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66381B	#FFFFFF	#000000	##FFFFFF
##66381B	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D18

Deuteranopia (green-blind)

#50481B

Tritanopia (blue-blind)

#702F31

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #66381b;
/* rgb */ color: rgb(102, 56, 27);
/* oklch */ color: oklch(39.2% 0.078 50.9);

Tailwind

colors: {
  custom: {
    50: '#966f58',
    500: '#66381b',
    950: '#000000',
  },
}

SCSS

$custom: #66381b;
$custom-light: #966f58;
$custom-dark: #000000;

JSON

{
  "hex": "#66381b",
  "rgb": {
    "r": 102,
    "g": 56,
    "b": 27
  },
  "hsl": {
    "h": 23.2,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.39218,
    "c": 0.07766,
    "h": 50.9
  },
  "luminance": 0.05732
}

Semantic roles & 50–950 ramp

primary

#66381B

secondary

#41799B

accent

#A5E146

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #66381B

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

Preview Lab → · Contrast checker → · Palette generator →