#645A4A#645A4A

#645A4A is a mid, muted orange. Relative luminance 0.105; OKLCH L 47.2% C 0.028 H 79.5°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#645A4A
RGB	rgb(100, 90, 74)
HSL	hsl(37, 15%, 34%)
HSV	hsv(37, 26%, 39%)
CMYK	cmyk(0%, 10%, 26%, 60.8%)
CIE-LAB	lab(38.75, 1.19, 10.73)
CIE-LCH	lch(38.75, 10.80, 83.66°)
OKLab	oklab(47.25% 0.0051 0.0275)
OKLCH	oklch(47.25% 0.028 79.5)
XYZ	xyz(10.1478, 10.5163, 7.9725)
Luminance	0.1052 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A4A #4A5464

analogous

#644D4A #645A4A #61644A

triadic

#645A4A #4A645A #5A4A64

tetradic

#645A4A #4A644D #4A5464 #644A61

square

#645A4A #4A644D #4A5464 #644A61

split-complementary

#645A4A #4A6164 #4D4A64

monochromatic

#1E1B16 #413A30 #645A4A #877A64 #A49884

Accessibility & contrast

On white

6.77

#645A4A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#645A4A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A4A

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A4A	#FFFFFF	#000000	##FFFFFF
##645A4A	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5A49

Deuteranopia (green-blind)

#615C4A

Tritanopia (blue-blind)

#695756

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #645a4a;
/* rgb */ color: rgb(100, 90, 74);
/* oklch */ color: oklch(47.2% 0.028 79.5);

Tailwind

colors: {
  custom: {
    50: '#90887c',
    500: '#645a4a',
    950: '#000000',
  },
}

SCSS

$custom: #645a4a;
$custom-light: #90887c;
$custom-dark: #000000;

JSON

{
  "hex": "#645a4a",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 74
  },
  "hsl": {
    "h": 36.923,
    "s": 14.943,
    "l": 34.118
  },
  "oklch": {
    "l": 0.47249,
    "c": 0.02795,
    "h": 79.5
  },
  "luminance": 0.10516
}

Semantic roles & 50–950 ramp

primary

#645A4A

secondary

#788292

accent

#8CB870

background

#F8F8F7

surface

#F0EFEE

border

#CBCAC9

text

#0C0B09

muted

#7D7C7B

Preview Lab

Preview with #645A4A

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

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