#645C15#645C15

#645C15 is a mid, moderate yellow. Relative luminance 0.104; OKLCH L 46.9% C 0.089 H 102.7°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#645C15
RGB	rgb(100, 92, 21)
HSL	hsl(54, 65%, 24%)
HSV	hsv(54, 79%, 39%)
CMYK	cmyk(0%, 8%, 79%, 60.8%)
CIE-LAB	lab(38.58, -5.55, 39.35)
CIE-LCH	lch(38.58, 39.74, 98.02°)
OKLab	oklab(46.87% -0.0195 0.0865)
OKLCH	oklch(46.87% 0.089 102.7)
XYZ	xyz(9.2184, 10.4182, 2.2347)
Luminance	0.1042 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C15 #151D64

analogous

#643415 #645C15 #446415

triadic

#645C15 #15645C #5C1564

tetradic

#645C15 #156434 #151D64 #641544

square

#645C15 #156434 #151D64 #641544

split-complementary

#645C15 #154464 #341564

monochromatic

#191705 #312D0A #645C15 #978B20 #C9B92A

Accessibility & contrast

On white

6.81

#645C15 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#645C15 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C15

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C15	#FFFFFF	#000000	##FFFFFF
##645C15	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)

#655907

Deuteranopia (green-blind)

#685C1A

Tritanopia (blue-blind)

#6C554E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #645c15;
/* rgb */ color: rgb(100, 92, 21);
/* oklch */ color: oklch(46.9% 0.089 102.7);

Tailwind

colors: {
  custom: {
    50: '#938958',
    500: '#645c15',
    950: '#000000',
  },
}

SCSS

$custom: #645c15;
$custom-light: #938958;
$custom-dark: #000000;

JSON

{
  "hex": "#645c15",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 21
  },
  "hsl": {
    "h": 53.924,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.46865,
    "c": 0.08869,
    "h": 102.7
  },
  "luminance": 0.10418
}

Semantic roles & 50–950 ramp

primary

#645C15

secondary

#3A449B

accent

#51E840

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645C15

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

Preview Lab → · Contrast checker → · Palette generator →