#645311#645311

#645311 is a dark, moderate yellow. Relative luminance 0.089; OKLCH L 44.7% C 0.084 H 93.6°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#645311
RGB	rgb(100, 83, 17)
HSL	hsl(48, 71%, 23%)
HSV	hsv(48, 83%, 39%)
CMYK	cmyk(0%, 17%, 83%, 60.8%)
CIE-LAB	lab(35.86, -0.38, 38.37)
CIE-LCH	lch(35.86, 38.38, 90.57°)
OKLab	oklab(44.7% -0.0053 0.0836)
OKLCH	oklch(44.7% 0.084 93.6)
XYZ	xyz(8.4504, 8.9368, 1.8101)
Luminance	0.0894 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645311 #112264

analogous

#642911 #645311 #4B6411

triadic

#645311 #116453 #531164

tetradic

#645311 #116429 #112264 #64114B

square

#645311 #116429 #112264 #64114B

split-complementary

#645311 #114B64 #291164

monochromatic

#1A1604 #302808 #645311 #987E1A #CDAA23

Accessibility & contrast

On white

7.53

#645311 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#645311 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #645311

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645311	#FFFFFF	#000000	##FFFFFF
##645311	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5104

Deuteranopia (green-blind)

#615615

Tritanopia (blue-blind)

#6D4C46

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #645311;
/* rgb */ color: rgb(100, 83, 17);
/* oklch */ color: oklch(44.7% 0.084 93.6);

Tailwind

colors: {
  custom: {
    50: '#938355',
    500: '#645311',
    950: '#000000',
  },
}

SCSS

$custom: #645311;
$custom-light: #938355;
$custom-dark: #000000;

JSON

{
  "hex": "#645311",
  "rgb": {
    "r": 100,
    "g": 83,
    "b": 17
  },
  "hsl": {
    "h": 47.711,
    "s": 70.94,
    "l": 22.941
  },
  "oklch": {
    "l": 0.44701,
    "c": 0.08373,
    "h": 93.6
  },
  "luminance": 0.08936
}

Semantic roles & 50–950 ramp

primary

#645311

secondary

#354A9C

accent

#5FEE3A

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0E0A03

muted

#7E7C78

Preview Lab

Preview with #645311

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

Preview Lab → · Contrast checker → · Palette generator →