#644B35#644B35

#644B35 is a dark, muted orange. Relative luminance 0.080; OKLCH L 43.4% C 0.048 H 62.4°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX#644B35
RGBrgb(100, 75, 53)
HSLhsl(28, 31%, 30%)
HSVhsv(28, 47%, 39%)
CMYKcmyk(0%, 25%, 47%, 60.8%)
CIE-LABlab(33.98, 7.41, 17.19)
CIE-LCHlch(33.98, 18.72, 66.68°)
OKLaboklab(43.36% 0.0222 0.0425)
OKLCHoklch(43.36% 0.048 62.4)
XYZxyz(8.4145, 7.9990, 4.4682)
Luminance0.0800 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644B35 #354E64
analogous
#643537 #644B35 #646235
triadic
#644B35 #35644B #4B3564
tetradic
#644B35 #376435 #354E64 #623564
square
#644B35 #376435 #354E64 #623564
split-complementary
#644B35 #356462 #353764
monochromatic
#140F0B #3C2D20 #644B35 #8C694A #AE8766

Accessibility & contrast

On white

8.08
#644B35 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.60
#644B35 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B35
8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644B35#FFFFFF#000000##FFFFFF
##644B351.008.082.608.08
#FFFFFF8.081.0021.001.00
#0000002.6021.001.0021.00
##FFFFFF8.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#534D33
Deuteranopia (green-blind)
#595235
Tritanopia (blue-blind)
#6B4645
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #644b35;
/* rgb */ color: rgb(100, 75, 53);
/* oklch */ color: oklch(43.4% 0.048 62.4);
Tailwind
colors: {
  custom: {
    50: '#917d6c',
    500: '#644b35',
    950: '#000000',
  },
}
SCSS
$custom: #644b35;
$custom-light: #917d6c;
$custom-dark: #000000;
JSON
{
  "hex": "#644b35",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 53
  },
  "hsl": {
    "h": 28.085,
    "s": 30.719,
    "l": 30
  },
  "oklch": {
    "l": 0.43364,
    "c": 0.04792,
    "h": 62.4
  },
  "luminance": 0.07999
}

Semantic roles & 50–950 ramp

primary
#644B35
secondary
#607C95
accent
#97C761
background
#F9F7F6
surface
#F1EEEB
border
#CBC9C6
text
#0D0907
muted
#7E7B7A

Preview Lab

Preview with #644B35

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

Preview Lab → · Contrast checker → · Palette generator →

#644B35 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva