#645454#645454

#645454 is a mid, muted red. Relative luminance 0.097; OKLCH L 46.2% C 0.021 H 17.9°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#645454
RGB	rgb(100, 84, 84)
HSL	hsl(0, 9%, 36%)
HSV	hsv(0, 16%, 39%)
CMYK	cmyk(0%, 16%, 16%, 60.8%)
CIE-LAB	lab(37.28, 6.59, 2.45)
CIE-LCH	lch(37.28, 7.03, 20.42°)
OKLab	oklab(46.18% 0.0202 0.0065)
OKLCH	oklch(46.18% 0.021 17.9)
XYZ	xyz(10.0260, 9.6903, 9.7281)
Luminance	0.0969 (WCAG relative)
Temperature	neutral
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645454 #546464

analogous

#64545C #645454 #645C54

triadic

#645454 #546454 #545464

tetradic

#645454 #5C6454 #546464 #5C5464

square

#645454 #5C6454 #546464 #5C5464

split-complementary

#645454 #54645C #545C64

monochromatic

#211C1C #433838 #645454 #857070 #A29090

Accessibility & contrast

On white

7.15

#645454 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#645454 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #645454

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645454	#FFFFFF	#000000	##FFFFFF
##645454	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575654

Deuteranopia (green-blind)

#5A5954

Tritanopia (blue-blind)

#685354

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #645454;
/* rgb */ color: rgb(100, 84, 84);
/* oklch */ color: oklch(46.2% 0.021 17.9);

Tailwind

colors: {
  custom: {
    50: '#908484',
    500: '#645454',
    950: '#000000',
  },
}

SCSS

$custom: #645454;
$custom-light: #908484;
$custom-dark: #000000;

JSON

{
  "hex": "#645454",
  "rgb": {
    "r": 100,
    "g": 84,
    "b": 84
  },
  "hsl": {
    "h": 0,
    "s": 8.696,
    "l": 36.078
  },
  "oklch": {
    "l": 0.46182,
    "c": 0.02122,
    "h": 17.9
  },
  "luminance": 0.0969
}

Semantic roles & 50–950 ramp

primary

#645454

secondary

#839191

accent

#B2B276

background

#F8F8F8

surface

#F0EFEF

border

#CBCACA

text

#0C0A0A

muted

#7D7C7C

Preview Lab

Preview with #645454

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

Preview Lab → · Contrast checker → · Palette generator →