#645E16#645E16

#645E16 is a mid, moderate yellow. Relative luminance 0.108; OKLCH L 47.4% C 0.090 H 104.5°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#645E16
RGB	rgb(100, 94, 22)
HSL	hsl(55, 64%, 24%)
HSV	hsv(55, 78%, 39%)
CMYK	cmyk(0%, 6%, 78%, 60.8%)
CIE-LAB	lab(39.20, -6.66, 39.54)
CIE-LCH	lch(39.20, 40.09, 99.56°)
OKLab	oklab(47.35% -0.0225 0.0871)
OKLCH	oklch(47.35% 0.09 104.5)
XYZ	xyz(9.4035, 10.7730, 2.3430)
Luminance	0.1077 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E16 #161C64

analogous

#643716 #645E16 #436416

triadic

#645E16 #16645E #5E1664

tetradic

#645E16 #166437 #161C64 #641643

square

#645E16 #166437 #161C64 #641643

split-complementary

#645E16 #164364 #371664

monochromatic

#191806 #322F0B #645E16 #968D21 #C8BC2C

Accessibility & contrast

On white

6.66

#645E16 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#645E16 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E16

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E16	#FFFFFF	#000000	##FFFFFF
##645E16	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675A08

Deuteranopia (green-blind)

#695E1B

Tritanopia (blue-blind)

#6C5750

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #645e16;
/* rgb */ color: rgb(100, 94, 22);
/* oklch */ color: oklch(47.4% 0.090 104.5);

Tailwind

colors: {
  custom: {
    50: '#938b59',
    500: '#645e16',
    950: '#000000',
  },
}

SCSS

$custom: #645e16;
$custom-light: #938b59;
$custom-dark: #000000;

JSON

{
  "hex": "#645e16",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 22
  },
  "hsl": {
    "h": 55.385,
    "s": 63.934,
    "l": 23.922
  },
  "oklch": {
    "l": 0.47354,
    "c": 0.09,
    "h": 104.5
  },
  "luminance": 0.10773
}

Semantic roles & 50–950 ramp

primary

#645E16

secondary

#3B429B

accent

#4EE741

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645E16

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

Preview Lab → · Contrast checker → · Palette generator →