#645D22#645D22

#645D22 is a mid, moderate yellow. Relative luminance 0.107; OKLCH L 47.2% C 0.079 H 102.6°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#645D22
RGB	rgb(100, 93, 34)
HSL	hsl(54, 49%, 26%)
HSV	hsv(54, 66%, 39%)
CMYK	cmyk(0%, 7%, 66%, 60.8%)
CIE-LAB	lab(38.99, -5.32, 33.93)
CIE-LCH	lch(38.99, 34.35, 98.92°)
OKLab	oklab(47.22% -0.0173 0.0775)
OKLCH	oklch(47.22% 0.079 102.6)
XYZ	xyz(9.4590, 10.6539, 3.0712)
Luminance	0.1065 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645D22 #222964

analogous

#643C22 #645D22 #4A6422

triadic

#645D22 #22645D #5D2264

tetradic

#645D22 #22643C #222964 #64224A

square

#645D22 #22643C #222964 #64224A

split-complementary

#645D22 #224A64 #3C2264

monochromatic

#171508 #363312 #645D22 #928732 #BFB142

Accessibility & contrast

On white

6.71

#645D22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#645D22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645D22

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645D22	#FFFFFF	#000000	##FFFFFF
##645D22	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655A1B

Deuteranopia (green-blind)

#685D25

Tritanopia (blue-blind)

#6C5750

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #645d22;
/* rgb */ color: rgb(100, 93, 34);
/* oklch */ color: oklch(47.2% 0.079 102.6);

Tailwind

colors: {
  custom: {
    50: '#928a60',
    500: '#645d22',
    950: '#000000',
  },
}

SCSS

$custom: #645d22;
$custom-light: #928a60;
$custom-dark: #000000;

JSON

{
  "hex": "#645d22",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 34
  },
  "hsl": {
    "h": 53.636,
    "s": 49.254,
    "l": 26.275
  },
  "oklch": {
    "l": 0.47223,
    "c": 0.07943,
    "h": 102.6
  },
  "luminance": 0.10654
}

Semantic roles & 50–950 ramp

primary

#645D22

secondary

#4A5298

accent

#5ED94F

background

#F9F8F5

surface

#F1F0E9

border

#CBCBC5

text

#0D0B05

muted

#7E7C79

Preview Lab

Preview with #645D22

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

Preview Lab → · Contrast checker → · Palette generator →