#645C54#645C54

#645C54 is a mid, near-neutral orange. Relative luminance 0.110; OKLCH L 48.0% C 0.016 H 67.4°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#645C54
RGB	rgb(100, 92, 84)
HSL	hsl(30, 9%, 36%)
HSV	hsv(30, 16%, 39%)
CMYK	cmyk(0%, 8%, 16%, 60.8%)
CIE-LAB	lab(39.59, 1.70, 5.76)
CIE-LCH	lch(39.59, 6.01, 73.59°)
OKLab	oklab(47.99% 0.0063 0.015)
OKLCH	oklch(47.99% 0.016 67.4)
XYZ	xyz(10.6828, 11.0039, 9.9470)
Luminance	0.1100 (WCAG relative)
Temperature	neutral
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C54 #545C64

analogous

#645454 #645C54 #646454

triadic

#645C54 #54645C #5C5464

tetradic

#645C54 #546454 #545C64 #645464

square

#645C54 #546454 #545C64 #645464

split-complementary

#645C54 #546464 #545464

monochromatic

#211F1C #433D38 #645C54 #857B70 #A29990

Accessibility & contrast

On white

6.56

#645C54 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#645C54 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C54

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C54	#FFFFFF	#000000	##FFFFFF
##645C54	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5C54

Deuteranopia (green-blind)

#615E54

Tritanopia (blue-blind)

#675A5A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645c54;
/* rgb */ color: rgb(100, 92, 84);
/* oklch */ color: oklch(48.0% 0.016 67.4);

Tailwind

colors: {
  custom: {
    50: '#908a84',
    500: '#645c54',
    950: '#000000',
  },
}

SCSS

$custom: #645c54;
$custom-light: #908a84;
$custom-dark: #000000;

JSON

{
  "hex": "#645c54",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 84
  },
  "hsl": {
    "h": 30,
    "s": 8.696,
    "l": 36.078
  },
  "oklch": {
    "l": 0.47986,
    "c": 0.01629,
    "h": 67.4
  },
  "luminance": 0.11004
}

Semantic roles & 50–950 ramp

primary

#645C54

secondary

#838A91

accent

#94B276

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0B0A

muted

#7D7C7C

Preview Lab

Preview with #645C54

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

Preview Lab → · Contrast checker → · Palette generator →