#645A20#645A20

#645A20 is a mid, moderate yellow. Relative luminance 0.101; OKLCH L 46.5% C 0.078 H 99.5°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#645A20
RGB	rgb(100, 90, 32)
HSL	hsl(51, 52%, 26%)
HSV	hsv(51, 68%, 39%)
CMYK	cmyk(0%, 10%, 68%, 60.8%)
CIE-LAB	lab(38.07, -3.71, 33.92)
CIE-LCH	lch(38.07, 34.13, 96.23°)
OKLab	oklab(46.49% -0.0129 0.0772)
OKLCH	oklch(46.49% 0.078 99.5)
XYZ	xyz(9.1728, 10.1263, 2.8376)
Luminance	0.1013 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A20 #202A64

analogous

#643820 #645A20 #4C6420

triadic

#645A20 #20645A #5A2064

tetradic

#645A20 #206438 #202A64 #64204C

square

#645A20 #206438 #202A64 #64204C

split-complementary

#645A20 #204C64 #382064

monochromatic

#171507 #363011 #645A20 #92842F #C1AD3E

Accessibility & contrast

On white

6.94

#645A20 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#645A20 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A20

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A20	#FFFFFF	#000000	##FFFFFF
##645A20	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635719

Deuteranopia (green-blind)

#665B23

Tritanopia (blue-blind)

#6C534E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #645a20;
/* rgb */ color: rgb(100, 90, 32);
/* oklch */ color: oklch(46.5% 0.078 99.5);

Tailwind

colors: {
  custom: {
    50: '#92885e',
    500: '#645a20',
    950: '#000000',
  },
}

SCSS

$custom: #645a20;
$custom-light: #92885e;
$custom-dark: #000000;

JSON

{
  "hex": "#645a20",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 32
  },
  "hsl": {
    "h": 51.176,
    "s": 51.515,
    "l": 25.882
  },
  "oklch": {
    "l": 0.46485,
    "c": 0.07826,
    "h": 99.5
  },
  "luminance": 0.10126
}

Semantic roles & 50–950 ramp

primary

#645A20

secondary

#485398

accent

#62DB4D

background

#F9F8F5

surface

#F1EFE9

border

#CBCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645A20

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

Preview Lab → · Contrast checker → · Palette generator →