#63571C#63571C

#63571C is a mid, moderate yellow. Relative luminance 0.096; OKLCH L 45.6% C 0.079 H 97.6°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#63571C
RGB	rgb(99, 87, 28)
HSL	hsl(50, 56%, 25%)
HSV	hsv(50, 72%, 39%)
CMYK	cmyk(0%, 12.1%, 71.7%, 61.2%)
CIE-LAB	lab(37.03, -2.69, 34.73)
CIE-LCH	lch(37.03, 34.83, 94.42°)
OKLab	oklab(45.62% -0.0105 0.0782)
OKLCH	oklch(45.62% 0.079 97.6)
XYZ	xyz(8.7638, 9.5533, 2.4807)
Luminance	0.0955 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63571C #1C2863

analogous

#63331C #63571C #4C631C

triadic

#63571C #1C6357 #571C63

tetradic

#63571C #1C6333 #1C2863 #631C4C

square

#63571C #1C6333 #1C2863 #631C4C

split-complementary

#63571C #1C4C63 #331C63

monochromatic

#181507 #332D0F #63571C #938129 #C2AB37

Accessibility & contrast

On white

7.22

#63571C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#63571C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63571C

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63571C	#FFFFFF	#000000	##FFFFFF
##63571C	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605514

Deuteranopia (green-blind)

#63591F

Tritanopia (blue-blind)

#6B504B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #63571c;
/* rgb */ color: rgb(99, 87, 28);
/* oklch */ color: oklch(45.6% 0.079 97.6);

Tailwind

colors: {
  custom: {
    50: '#92865c',
    500: '#63571c',
    950: '#000000',
  },
}

SCSS

$custom: #63571c;
$custom-light: #92865c;
$custom-dark: #000000;

JSON

{
  "hex": "#63571c",
  "rgb": {
    "r": 99,
    "g": 87,
    "b": 28
  },
  "hsl": {
    "h": 49.859,
    "s": 55.906,
    "l": 24.902
  },
  "oklch": {
    "l": 0.45624,
    "c": 0.07891,
    "h": 97.6
  },
  "luminance": 0.09553
}

Semantic roles & 50–950 ramp

primary

#63571C

secondary

#435198

accent

#62DF49

background

#F9F8F5

surface

#F1EFE9

border

#CBCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #63571C

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

Preview Lab → · Contrast checker → · Palette generator →