#645E23#645E23

#645E23 is a mid, moderate yellow. Relative luminance 0.108; OKLCH L 47.5% C 0.080 H 103.5°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#645E23
RGB	rgb(100, 94, 35)
HSL	hsl(54, 48%, 26%)
HSV	hsv(54, 65%, 39%)
CMYK	cmyk(0%, 6%, 65%, 60.8%)
CIE-LAB	lab(39.30, -5.83, 33.77)
CIE-LCH	lch(39.30, 34.27, 99.80°)
OKLab	oklab(47.48% -0.0186 0.0774)
OKLCH	oklch(47.48% 0.08 103.5)
XYZ	xyz(9.5620, 10.8364, 3.1777)
Luminance	0.1084 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E23 #232964

analogous

#643E23 #645E23 #4A6423

triadic

#645E23 #23645E #5E2364

tetradic

#645E23 #23643E #232964 #64234A

square

#645E23 #23643E #232964 #64234A

split-complementary

#645E23 #234A64 #3E2364

monochromatic

#171508 #373313 #645E23 #918933 #BEB244

Accessibility & contrast

On white

6.63

#645E23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#645E23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E23

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E23	#FFFFFF	#000000	##FFFFFF
##645E23	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665B1C

Deuteranopia (green-blind)

#685E26

Tritanopia (blue-blind)

#6B5851

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645e23;
/* rgb */ color: rgb(100, 94, 35);
/* oklch */ color: oklch(47.5% 0.080 103.5);

Tailwind

colors: {
  custom: {
    50: '#928b61',
    500: '#645e23',
    950: '#000000',
  },
}

SCSS

$custom: #645e23;
$custom-light: #928b61;
$custom-dark: #000000;

JSON

{
  "hex": "#645e23",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 35
  },
  "hsl": {
    "h": 54.462,
    "s": 48.148,
    "l": 26.471
  },
  "oklch": {
    "l": 0.47475,
    "c": 0.07955,
    "h": 103.5
  },
  "luminance": 0.10836
}

Semantic roles & 50–950 ramp

primary

#645E23

secondary

#4B5298

accent

#5DD850

background

#F9F8F5

surface

#F1F0EA

border

#CBCBC6

text

#0D0C05

muted

#7E7D79

Preview Lab

Preview with #645E23

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

Preview Lab → · Contrast checker → · Palette generator →