#645C4A#645C4A

#645C4A is a mid, muted orange. Relative luminance 0.109; OKLCH L 47.7% C 0.030 H 86.9°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#645C4A
RGB	rgb(100, 92, 74)
HSL	hsl(42, 15%, 34%)
HSV	hsv(42, 26%, 39%)
CMYK	cmyk(0%, 8%, 26%, 60.8%)
CIE-LAB	lab(39.34, -0.01, 11.55)
CIE-LCH	lch(39.34, 11.55, 90.07°)
OKLab	oklab(47.71% 0.0016 0.0295)
OKLCH	oklch(47.71% 0.03 86.9)
XYZ	xyz(10.3187, 10.8583, 8.0295)
Luminance	0.1086 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C4A #4A5264

analogous

#644F4A #645C4A #5F644A

triadic

#645C4A #4A645C #5C4A64

tetradic

#645C4A #4A644F #4A5264 #644A5F

square

#645C4A #4A644F #4A5264 #644A5F

split-complementary

#645C4A #4A5F64 #4F4A64

monochromatic

#1E1B16 #413C30 #645C4A #877C64 #A49A84

Accessibility & contrast

On white

6.62

#645C4A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#645C4A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C4A

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C4A	#FFFFFF	#000000	##FFFFFF
##645C4A	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605B49

Deuteranopia (green-blind)

#625E4B

Tritanopia (blue-blind)

#685957

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645c4a;
/* rgb */ color: rgb(100, 92, 74);
/* oklch */ color: oklch(47.7% 0.030 86.9);

Tailwind

colors: {
  custom: {
    50: '#908a7c',
    500: '#645c4a',
    950: '#000000',
  },
}

SCSS

$custom: #645c4a;
$custom-light: #908a7c;
$custom-dark: #000000;

JSON

{
  "hex": "#645c4a",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 74
  },
  "hsl": {
    "h": 41.538,
    "s": 14.943,
    "l": 34.118
  },
  "oklch": {
    "l": 0.47711,
    "c": 0.02952,
    "h": 86.9
  },
  "luminance": 0.10858
}

Semantic roles & 50–950 ramp

primary

#645C4A

secondary

#788092

accent

#86B870

background

#F8F8F7

surface

#F0F0EE

border

#CBCBC9

text

#0C0B09

muted

#7D7C7B

Preview Lab

Preview with #645C4A

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

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