#645918#645918

#645918 is a mid, moderate yellow. Relative luminance 0.099; OKLCH L 46.2% C 0.084 H 99.4°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#645918
RGB	rgb(100, 89, 24)
HSL	hsl(51, 61%, 24%)
HSV	hsv(51, 76%, 39%)
CMYK	cmyk(0%, 11%, 76%, 60.8%)
CIE-LAB	lab(37.70, -3.62, 37.26)
CIE-LCH	lch(37.70, 37.43, 95.55°)
OKLab	oklab(46.17% -0.0137 0.0827)
OKLCH	oklch(46.17% 0.084 99.4)
XYZ	xyz(8.9932, 9.9205, 2.3051)
Luminance	0.0992 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645918 #182364

analogous

#643318 #645918 #496418

triadic

#645918 #186459 #591864

tetradic

#645918 #186433 #182364 #641849

square

#645918 #186433 #182364 #641849

split-complementary

#645918 #184964 #331864

monochromatic

#191606 #332D0C #645918 #958524 #C7B130

Accessibility & contrast

On white

7.04

#645918 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#645918 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #645918

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645918	#FFFFFF	#000000	##FFFFFF
##645918	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62560E

Deuteranopia (green-blind)

#655A1C

Tritanopia (blue-blind)

#6C524C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #645918;
/* rgb */ color: rgb(100, 89, 24);
/* oklch */ color: oklch(46.2% 0.084 99.4);

Tailwind

colors: {
  custom: {
    50: '#93875a',
    500: '#645918',
    950: '#000000',
  },
}

SCSS

$custom: #645918;
$custom-light: #93875a;
$custom-dark: #000000;

JSON

{
  "hex": "#645918",
  "rgb": {
    "r": 100,
    "g": 89,
    "b": 24
  },
  "hsl": {
    "h": 51.316,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.4617,
    "c": 0.08386,
    "h": 99.4
  },
  "luminance": 0.0992
}

Semantic roles & 50–950 ramp

primary

#645918

secondary

#3E4B9A

accent

#5BE443

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645918

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

Preview Lab → · Contrast checker → · Palette generator →