#645D11#645D11

#645D11 is a mid, moderate yellow. Relative luminance 0.106; OKLCH L 47.1% C 0.092 H 103.8°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#645D11
RGB	rgb(100, 93, 17)
HSL	hsl(55, 71%, 23%)
HSV	hsv(55, 83%, 39%)
CMYK	cmyk(0%, 7%, 83%, 60.8%)
CIE-LAB	lab(38.86, -6.31, 41.09)
CIE-LCH	lch(38.86, 41.57, 98.73°)
OKLab	oklab(47.08% -0.022 0.0894)
OKLCH	oklch(47.08% 0.092 103.8)
XYZ	xyz(9.2715, 10.5789, 2.0838)
Luminance	0.1058 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645D11 #111864

analogous

#643311 #645D11 #416411

triadic

#645D11 #11645D #5D1164

tetradic

#645D11 #116433 #111864 #641141

square

#645D11 #116433 #111864 #641141

split-complementary

#645D11 #114164 #331164

monochromatic

#1A1804 #302C08 #645D11 #988E1A #CDBE23

Accessibility & contrast

On white

6.74

#645D11 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#645D11 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645D11

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645D11	#FFFFFF	#000000	##FFFFFF
##645D11	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665A00

Deuteranopia (green-blind)

#685D17

Tritanopia (blue-blind)

#6C564F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #645d11;
/* rgb */ color: rgb(100, 93, 17);
/* oklch */ color: oklch(47.1% 0.092 103.8);

Tailwind

colors: {
  custom: {
    50: '#938a57',
    500: '#645d11',
    950: '#000000',
  },
}

SCSS

$custom: #645d11;
$custom-light: #938a57;
$custom-dark: #000000;

JSON

{
  "hex": "#645d11",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 17
  },
  "hsl": {
    "h": 54.94,
    "s": 70.94,
    "l": 22.941
  },
  "oklch": {
    "l": 0.47079,
    "c": 0.09206,
    "h": 103.8
  },
  "luminance": 0.10578
}

Semantic roles & 50–950 ramp

primary

#645D11

secondary

#353D9C

accent

#49EE3A

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B03

muted

#7E7C78

Preview Lab

Preview with #645D11

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

Preview Lab → · Contrast checker → · Palette generator →