#645A17#645A17

#645A17 is a mid, moderate yellow. Relative luminance 0.101; OKLCH L 46.4% C 0.085 H 100.5°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#645A17
RGB	rgb(100, 90, 23)
HSL	hsl(52, 63%, 24%)
HSV	hsv(52, 77%, 39%)
CMYK	cmyk(0%, 10%, 77%, 60.8%)
CIE-LAB	lab(37.99, -4.27, 37.97)
CIE-LCH	lch(37.99, 38.21, 96.41°)
OKLab	oklab(46.4% -0.0156 0.084)
OKLCH	oklch(46.4% 0.085 100.5)
XYZ	xyz(9.0668, 10.0839, 2.2793)
Luminance	0.1008 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A17 #172164

analogous

#643417 #645A17 #486417

triadic

#645A17 #17645A #5A1764

tetradic

#645A17 #176434 #172164 #641748

square

#645A17 #176434 #172164 #641748

split-complementary

#645A17 #174864 #341764

monochromatic

#191606 #322D0C #645A17 #968722 #C8B42E

Accessibility & contrast

On white

6.96

#645A17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#645A17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A17

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A17	#FFFFFF	#000000	##FFFFFF
##645A17	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63570C

Deuteranopia (green-blind)

#665B1B

Tritanopia (blue-blind)

#6C534D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #645a17;
/* rgb */ color: rgb(100, 90, 23);
/* oklch */ color: oklch(46.4% 0.085 100.5);

Tailwind

colors: {
  custom: {
    50: '#938859',
    500: '#645a17',
    950: '#000000',
  },
}

SCSS

$custom: #645a17;
$custom-light: #938859;
$custom-dark: #000000;

JSON

{
  "hex": "#645a17",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 23
  },
  "hsl": {
    "h": 52.208,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.46401,
    "c": 0.08547,
    "h": 100.5
  },
  "luminance": 0.10084
}

Semantic roles & 50–950 ramp

primary

#645A17

secondary

#3C499A

accent

#57E642

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645A17

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

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