#64371C#64371C

#64371C is a dark, moderate orange. Relative luminance 0.055; OKLCH L 38.7% C 0.075 H 50.0°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#64371C
RGB	rgb(100, 55, 28)
HSL	hsl(23, 56%, 25%)
HSV	hsv(23, 72%, 39%)
CMYK	cmyk(0%, 45%, 72%, 60.8%)
CIE-LAB	lab(28.18, 17.44, 25.18)
CIE-LCH	lch(28.18, 30.63, 55.29°)
OKLab	oklab(38.74% 0.0486 0.0578)
OKLCH	oklch(38.74% 0.075 50)
XYZ	xyz(6.8319, 5.5263, 1.8053)
Luminance	0.0553 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64371C #1C4964

analogous

#641C25 #64371C #645B1C

triadic

#64371C #1C6437 #371C64

tetradic

#64371C #25641C #1C4964 #5B1C64

square

#64371C #25641C #1C4964 #5B1C64

split-complementary

#64371C #1C645B #1C2564

monochromatic

#180D07 #341D0F #64371C #945129 #C46C37

Accessibility & contrast

On white

9.98

#64371C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#64371C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64371C

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64371C	#FFFFFF	#000000	##FFFFFF
##64371C	1.00	9.98	2.11	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443C19

Deuteranopia (green-blind)

#4E461C

Tritanopia (blue-blind)

#6E2E31

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #64371c;
/* rgb */ color: rgb(100, 55, 28);
/* oklch */ color: oklch(38.7% 0.075 50.0);

Tailwind

colors: {
  custom: {
    50: '#946e59',
    500: '#64371c',
    950: '#000000',
  },
}

SCSS

$custom: #64371c;
$custom-light: #946e59;
$custom-dark: #000000;

JSON

{
  "hex": "#64371c",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 28
  },
  "hsl": {
    "h": 22.5,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.38739,
    "c": 0.07549,
    "h": 50
  },
  "luminance": 0.05526
}

Semantic roles & 50–950 ramp

primary

#64371C

secondary

#437999

accent

#A7E048

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #64371C

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

Preview Lab → · Contrast checker → · Palette generator →