#64643B#64643B

#64643B is a mid, muted yellow. Relative luminance 0.121; OKLCH L 49.3% C 0.060 H 108.4°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#64643B
RGB	rgb(100, 100, 59)
HSL	hsl(60, 26%, 31%)
HSV	hsv(60, 41%, 39%)
CMYK	cmyk(0%, 0%, 41%, 60.8%)
CIE-LAB	lab(41.44, -6.88, 23.26)
CIE-LCH	lch(41.44, 24.25, 106.49°)
OKLab	oklab(49.27% -0.0189 0.0567)
OKLCH	oklch(49.27% 0.06 108.4)
XYZ	xyz(10.6023, 12.1396, 5.9215)
Luminance	0.1214 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64643B #3B3B64

analogous

#644F3B #64643B #4F643B

triadic

#64643B #3B6464 #643B64

tetradic

#64643B #3B644F #3B3B64 #643B4F

square

#64643B #3B644F #3B3B64 #643B4F

split-complementary

#64643B #3B4F64 #4F3B64

monochromatic

#17170E #3E3E24 #64643B #8A8A52 #AAAA6F

Accessibility & contrast

On white

6.13

#64643B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#64643B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #64643B

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64643B	#FFFFFF	#000000	##FFFFFF
##64643B	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6138

Deuteranopia (green-blind)

#6B633D

Tritanopia (blue-blind)

#695F5A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #64643b;
/* rgb */ color: rgb(100, 100, 59);
/* oklch */ color: oklch(49.3% 0.060 108.4);

Tailwind

colors: {
  custom: {
    50: '#919071',
    500: '#64643b',
    950: '#000000',
  },
}

SCSS

$custom: #64643b;
$custom-light: #919071;
$custom-dark: #000000;

JSON

{
  "hex": "#64643b",
  "rgb": {
    "r": 100,
    "g": 100,
    "b": 59
  },
  "hsl": {
    "h": 60,
    "s": 25.786,
    "l": 31.176
  },
  "oklch": {
    "l": 0.49274,
    "c": 0.05979,
    "h": 108.4
  },
  "luminance": 0.12139
}

Semantic roles & 50–950 ramp

primary

#64643B

secondary

#676794

accent

#66C266

background

#F8F8F6

surface

#F0F0EC

border

#CBCBC7

text

#0D0C08

muted

#7D7D7B

Preview Lab

Preview with #64643B

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

Preview Lab → · Contrast checker → · Palette generator →