#645A16#645A16

#645A16 is a mid, moderate yellow. Relative luminance 0.101; OKLCH L 46.4% C 0.086 H 100.6°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#645A16
RGB	rgb(100, 90, 22)
HSL	hsl(52, 64%, 24%)
HSV	hsv(52, 78%, 39%)
CMYK	cmyk(0%, 10%, 78%, 60.8%)
CIE-LAB	lab(37.99, -4.32, 38.38)
CIE-LCH	lch(37.99, 38.62, 96.42°)
OKLab	oklab(46.39% -0.0159 0.0847)
OKLCH	oklch(46.39% 0.086 100.6)
XYZ	xyz(9.0569, 10.0800, 2.2275)
Luminance	0.1008 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A16 #162064

analogous

#643316 #645A16 #476416

triadic

#645A16 #16645A #5A1664

tetradic

#645A16 #166433 #162064 #641647

square

#645A16 #166433 #162064 #641647

split-complementary

#645A16 #164764 #331664

monochromatic

#191706 #322D0B #645A16 #968721 #C8B42C

Accessibility & contrast

On white

6.96

#645A16 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#645A16 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A16

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A16	#FFFFFF	#000000	##FFFFFF
##645A16	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63570A

Deuteranopia (green-blind)

#665B1B

Tritanopia (blue-blind)

#6C534D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #645a16;
/* rgb */ color: rgb(100, 90, 22);
/* oklch */ color: oklch(46.4% 0.086 100.6);

Tailwind

colors: {
  custom: {
    50: '#938859',
    500: '#645a16',
    950: '#000000',
  },
}

SCSS

$custom: #645a16;
$custom-light: #938859;
$custom-dark: #000000;

JSON

{
  "hex": "#645a16",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 22
  },
  "hsl": {
    "h": 52.308,
    "s": 63.934,
    "l": 23.922
  },
  "oklch": {
    "l": 0.46393,
    "c": 0.08616,
    "h": 100.6
  },
  "luminance": 0.1008
}

Semantic roles & 50–950 ramp

primary

#645A16

secondary

#3B479B

accent

#56E741

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645A16

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

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