#645A11#645A11

#645A11 is a mid, moderate yellow. Relative luminance 0.101; OKLCH L 46.4% C 0.089 H 101.0°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#645A11
RGB	rgb(100, 90, 17)
HSL	hsl(53, 71%, 23%)
HSV	hsv(53, 83%, 39%)
CMYK	cmyk(0%, 10%, 83%, 60.8%)
CIE-LAB	lab(37.95, -4.55, 40.28)
CIE-LCH	lch(37.95, 40.53, 96.45°)
OKLab	oklab(46.36% -0.0171 0.0876)
OKLCH	oklch(46.36% 0.089 101)
XYZ	xyz(9.0133, 10.0626, 1.9977)
Luminance	0.1006 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A11 #111B64

analogous

#643011 #645A11 #446411

triadic

#645A11 #11645A #5A1164

tetradic

#645A11 #116430 #111B64 #641144

square

#645A11 #116430 #111B64 #641144

split-complementary

#645A11 #114464 #301164

monochromatic

#1A1804 #302B08 #645A11 #98891A #CDB823

Accessibility & contrast

On white

6.97

#645A11 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#645A11 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A11

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A11	#FFFFFF	#000000	##FFFFFF
##645A11	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635702

Deuteranopia (green-blind)

#665B17

Tritanopia (blue-blind)

#6C534C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #645a11;
/* rgb */ color: rgb(100, 90, 17);
/* oklch */ color: oklch(46.4% 0.089 101.0);

Tailwind

colors: {
  custom: {
    50: '#938856',
    500: '#645a11',
    950: '#000000',
  },
}

SCSS

$custom: #645a11;
$custom-light: #938856;
$custom-dark: #000000;

JSON

{
  "hex": "#645a11",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 17
  },
  "hsl": {
    "h": 52.771,
    "s": 70.94,
    "l": 22.941
  },
  "oklch": {
    "l": 0.46358,
    "c": 0.08929,
    "h": 101
  },
  "luminance": 0.10062
}

Semantic roles & 50–950 ramp

primary

#645A11

secondary

#35419C

accent

#50EE3A

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B03

muted

#7E7C78

Preview Lab

Preview with #645A11

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

Preview Lab → · Contrast checker → · Palette generator →