#645E54#645E54

#645E54 is a mid, near-neutral orange. Relative luminance 0.114; OKLCH L 48.4% C 0.017 H 80.6°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#645E54
RGB	rgb(100, 94, 84)
HSL	hsl(38, 9%, 36%)
HSV	hsv(38, 16%, 39%)
CMYK	cmyk(0%, 6%, 16%, 60.8%)
CIE-LAB	lab(40.17, 0.49, 6.60)
CIE-LCH	lch(40.17, 6.61, 85.74°)
OKLab	oklab(48.45% 0.0028 0.0172)
OKLCH	oklch(48.45% 0.017 80.6)
XYZ	xyz(10.8584, 11.3550, 10.0055)
Luminance	0.1135 (WCAG relative)
Temperature	neutral
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E54 #545A64

analogous

#645654 #645E54 #626454

triadic

#645E54 #54645E #5E5464

tetradic

#645E54 #546456 #545A64 #645462

square

#645E54 #546456 #545A64 #645462

split-complementary

#645E54 #546264 #565464

monochromatic

#211F1C #433F38 #645E54 #857D70 #A29B90

Accessibility & contrast

On white

6.42

#645E54 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#645E54 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E54

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E54	#FFFFFF	#000000	##FFFFFF
##645E54	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615E53

Deuteranopia (green-blind)

#625F54

Tritanopia (blue-blind)

#675C5B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #645e54;
/* rgb */ color: rgb(100, 94, 84);
/* oklch */ color: oklch(48.4% 0.017 80.6);

Tailwind

colors: {
  custom: {
    50: '#908b84',
    500: '#645e54',
    950: '#000000',
  },
}

SCSS

$custom: #645e54;
$custom-light: #908b84;
$custom-dark: #000000;

JSON

{
  "hex": "#645e54",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 84
  },
  "hsl": {
    "h": 37.5,
    "s": 8.696,
    "l": 36.078
  },
  "oklch": {
    "l": 0.48445,
    "c": 0.01739,
    "h": 80.6
  },
  "luminance": 0.11355
}

Semantic roles & 50–950 ramp

primary

#645E54

secondary

#838891

accent

#8CB276

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0C0A

muted

#7D7D7C

Preview Lab

Preview with #645E54

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

Preview Lab → · Contrast checker → · Palette generator →