#63391B#63391B

#63391B is a dark, moderate orange. Relative luminance 0.057; OKLCH L 39.0% C 0.074 H 54.1°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#63391B
RGB	rgb(99, 57, 27)
HSL	hsl(25, 57%, 25%)
HSV	hsv(25, 73%, 39%)
CMYK	cmyk(0%, 42.4%, 72.7%, 61.2%)
CIE-LAB	lab(28.53, 15.68, 26.11)
CIE-LCH	lch(28.53, 30.46, 59.02°)
OKLab	oklab(38.97% 0.0432 0.0597)
OKLCH	oklch(38.97% 0.074 54.1)
XYZ	xyz(6.8071, 5.6587, 1.7705)
Luminance	0.0566 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63391B #1B4563

analogous

#631B21 #63391B #635D1B

triadic

#63391B #1B6339 #391B63

tetradic

#63391B #21631B #1B4563 #5D1B63

square

#63391B #21631B #1B4563 #5D1B63

split-complementary

#63391B #1B635D #1B2163

monochromatic

#180E07 #331D0E #63391B #935528 #C37035

Accessibility & contrast

On white

9.85

#63391B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#63391B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63391B

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63391B	#FFFFFF	#000000	##FFFFFF
##63391B	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453E18

Deuteranopia (green-blind)

#4F471B

Tritanopia (blue-blind)

#6D3032

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #63391b;
/* rgb */ color: rgb(99, 57, 27);
/* oklch */ color: oklch(39.0% 0.074 54.1);

Tailwind

colors: {
  custom: {
    50: '#936f58',
    500: '#63391b',
    950: '#000000',
  },
}

SCSS

$custom: #63391b;
$custom-light: #936f58;
$custom-dark: #000000;

JSON

{
  "hex": "#63391b",
  "rgb": {
    "r": 99,
    "g": 57,
    "b": 27
  },
  "hsl": {
    "h": 25,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.38974,
    "c": 0.07365,
    "h": 54.1
  },
  "luminance": 0.05658
}

Semantic roles & 50–950 ramp

primary

#63391B

secondary

#417498

accent

#A1E047

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #63391B

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

Preview Lab → · Contrast checker → · Palette generator →