#645A54#645A54

#645A54 is a mid, near-neutral orange. Relative luminance 0.107; OKLCH L 47.5% C 0.016 H 53.1°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#645A54
RGB	rgb(100, 90, 84)
HSL	hsl(23, 9%, 36%)
HSV	hsv(23, 16%, 39%)
CMYK	cmyk(0%, 10%, 16%, 60.8%)
CIE-LAB	lab(39.01, 2.91, 4.93)
CIE-LCH	lch(39.01, 5.73, 59.46°)
OKLab	oklab(47.53% 0.0097 0.0129)
OKLCH	oklch(47.53% 0.016 53.1)
XYZ	xyz(10.5118, 10.6620, 9.8900)
Luminance	0.1066 (WCAG relative)
Temperature	neutral
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A54 #545E64

analogous

#645456 #645A54 #646254

triadic

#645A54 #54645A #5A5464

tetradic

#645A54 #566454 #545E64 #625464

square

#645A54 #566454 #545E64 #625464

split-complementary

#645A54 #546462 #545664

monochromatic

#211E1C #433C38 #645A54 #857870 #A29790

Accessibility & contrast

On white

6.70

#645A54 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#645A54 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A54

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A54	#FFFFFF	#000000	##FFFFFF
##645A54	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5B54

Deuteranopia (green-blind)

#5F5D54

Tritanopia (blue-blind)

#675858

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #645a54;
/* rgb */ color: rgb(100, 90, 84);
/* oklch */ color: oklch(47.5% 0.016 53.1);

Tailwind

colors: {
  custom: {
    50: '#908884',
    500: '#645a54',
    950: '#000000',
  },
}

SCSS

$custom: #645a54;
$custom-light: #908884;
$custom-dark: #000000;

JSON

{
  "hex": "#645a54",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 84
  },
  "hsl": {
    "h": 22.5,
    "s": 8.696,
    "l": 36.078
  },
  "oklch": {
    "l": 0.47529,
    "c": 0.01616,
    "h": 53.1
  },
  "luminance": 0.10662
}

Semantic roles & 50–950 ramp

primary

#645A54

secondary

#838C91

accent

#9BB276

background

#F8F8F8

surface

#F0EFEF

border

#CBCACA

text

#0C0B0A

muted

#7D7C7C

Preview Lab

Preview with #645A54

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

Preview Lab → · Contrast checker → · Palette generator →