#645C13#645C13

#645C13 is a mid, moderate yellow. Relative luminance 0.104; OKLCH L 46.9% C 0.090 H 102.8°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#645C13
RGB	rgb(100, 92, 19)
HSL	hsl(54, 68%, 23%)
HSV	hsv(54, 81%, 39%)
CMYK	cmyk(0%, 8%, 81%, 60.8%)
CIE-LAB	lab(38.57, -5.64, 40.11)
CIE-LCH	lch(38.57, 40.50, 98.00°)
OKLab	oklab(46.85% -0.0199 0.0877)
OKLCH	oklch(46.85% 0.09 102.8)
XYZ	xyz(9.2006, 10.4110, 2.1409)
Luminance	0.1041 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C13 #131B64

analogous

#643313 #645C13 #436413

triadic

#645C13 #13645C #5C1364

tetradic

#645C13 #136433 #131B64 #641343

square

#645C13 #136433 #131B64 #641343

split-complementary

#645C13 #134364 #331364

monochromatic

#1A1805 #312D09 #645C13 #978B1D #CBBB27

Accessibility & contrast

On white

6.81

#645C13 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#645C13 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C13

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C13	#FFFFFF	#000000	##FFFFFF
##645C13	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655904

Deuteranopia (green-blind)

#685C18

Tritanopia (blue-blind)

#6C554E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #645c13;
/* rgb */ color: rgb(100, 92, 19);
/* oklch */ color: oklch(46.9% 0.090 102.8);

Tailwind

colors: {
  custom: {
    50: '#938957',
    500: '#645c13',
    950: '#000000',
  },
}

SCSS

$custom: #645c13;
$custom-light: #938957;
$custom-dark: #000000;

JSON

{
  "hex": "#645c13",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 19
  },
  "hsl": {
    "h": 54.074,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.46851,
    "c": 0.08995,
    "h": 102.8
  },
  "luminance": 0.10411
}

Semantic roles & 50–950 ramp

primary

#645C13

secondary

#37419C

accent

#4EEB3D

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B03

muted

#7E7C78

Preview Lab

Preview with #645C13

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

Preview Lab → · Contrast checker → · Palette generator →