#645C4C#645C4C

#645C4C is a mid, muted orange. Relative luminance 0.109; OKLCH L 47.8% C 0.027 H 84.5°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#645C4C
RGB	rgb(100, 92, 76)
HSL	hsl(40, 14%, 35%)
HSV	hsv(40, 24%, 39%)
CMYK	cmyk(0%, 8%, 24%, 60.8%)
CIE-LAB	lab(39.39, 0.31, 10.39)
CIE-LCH	lch(39.39, 10.39, 88.28°)
OKLab	oklab(47.76% 0.0026 0.0266)
OKLCH	oklch(47.76% 0.027 84.5)
XYZ	xyz(10.3872, 10.8857, 8.3900)
Luminance	0.1089 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C4C #4C5464

analogous

#64504C #645C4C #60644C

triadic

#645C4C #4C645C #5C4C64

tetradic

#645C4C #4C6450 #4C5464 #644C60

square

#645C4C #4C6450 #4C5464 #644C60

split-complementary

#645C4C #4C6064 #504C64

monochromatic

#1E1C17 #413C32 #645C4C #877C66 #A49A87

Accessibility & contrast

On white

6.61

#645C4C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#645C4C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C4C

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C4C	#FFFFFF	#000000	##FFFFFF
##645C4C	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605C4B

Deuteranopia (green-blind)

#625E4C

Tritanopia (blue-blind)

#685958

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645c4c;
/* rgb */ color: rgb(100, 92, 76);
/* oklch */ color: oklch(47.8% 0.027 84.5);

Tailwind

colors: {
  custom: {
    50: '#908a7e',
    500: '#645c4c',
    950: '#000000',
  },
}

SCSS

$custom: #645c4c;
$custom-light: #908a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#645c4c",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 76
  },
  "hsl": {
    "h": 40,
    "s": 13.636,
    "l": 34.51
  },
  "oklch": {
    "l": 0.47763,
    "c": 0.02676,
    "h": 84.5
  },
  "luminance": 0.10885
}

Semantic roles & 50–950 ramp

primary

#645C4C

secondary

#7A8291

accent

#88B671

background

#F8F8F7

surface

#F0F0EE

border

#CBCBC9

text

#0C0B09

muted

#7D7C7B

Preview Lab

Preview with #645C4C

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

Preview Lab → · Contrast checker → · Palette generator →