#645337#645337

#645337 is a mid, muted orange. Relative luminance 0.092; OKLCH L 45.2% C 0.048 H 79.6°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#645337
RGB	rgb(100, 83, 55)
HSL	hsl(37, 29%, 30%)
HSV	hsv(37, 45%, 39%)
CMYK	cmyk(0%, 17%, 45%, 60.8%)
CIE-LAB	lab(36.31, 2.73, 19.02)
CIE-LCH	lch(36.31, 19.21, 81.82°)
OKLab	oklab(45.2% 0.0086 0.0468)
OKLCH	oklch(45.2% 0.048 79.6)
XYZ	xyz(9.0386, 9.1721, 4.9080)
Luminance	0.0917 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645337 #374864

analogous

#643C37 #645337 #5E6437

triadic

#645337 #376453 #533764

tetradic

#645337 #37643C #374864 #64375E

square

#645337 #37643C #374864 #64375E

split-complementary

#645337 #375E64 #3C3764

monochromatic

#15110C #3D3221 #645337 #8B744D #AC9369

Accessibility & contrast

On white

7.41

#645337 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#645337 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #645337

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645337	#FFFFFF	#000000	##FFFFFF
##645337	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5335

Deuteranopia (green-blind)

#5E5738

Tritanopia (blue-blind)

#6B4E4C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #645337;
/* rgb */ color: rgb(100, 83, 55);
/* oklch */ color: oklch(45.2% 0.048 79.6);

Tailwind

colors: {
  custom: {
    50: '#91836e',
    500: '#645337',
    950: '#000000',
  },
}

SCSS

$custom: #645337;
$custom-light: #91836e;
$custom-dark: #000000;

JSON

{
  "hex": "#645337",
  "rgb": {
    "r": 100,
    "g": 83,
    "b": 55
  },
  "hsl": {
    "h": 37.333,
    "s": 29.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.45202,
    "c": 0.04759,
    "h": 79.6
  },
  "luminance": 0.09172
}

Semantic roles & 50–950 ramp

primary

#645337

secondary

#627594

accent

#88C562

background

#F9F8F6

surface

#F1EFEB

border

#CBCAC6

text

#0D0A07

muted

#7E7C7A

Preview Lab

Preview with #645337

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

Preview Lab → · Contrast checker → · Palette generator →