#646643#646643

#646643 is a mid, muted yellow. Relative luminance 0.126; OKLCH L 49.9% C 0.052 H 110.9°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#646643
RGB	rgb(100, 102, 67)
HSL	hsl(63, 21%, 33%)
HSV	hsv(63, 34%, 40%)
CMYK	cmyk(2%, 0%, 34.3%, 60%)
CIE-LAB	lab(42.18, -6.97, 19.57)
CIE-LCH	lch(42.18, 20.78, 109.60°)
OKLab	oklab(49.91% -0.0185 0.0486)
OKLCH	oklch(49.91% 0.052 110.9)
XYZ	xyz(11.0201, 12.6175, 7.1640)
Luminance	0.1262 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646643 #454366

analogous

#665643 #646643 #526643

triadic

#646643 #436466 #664364

tetradic

#646643 #436656 #454366 #664352

square

#646643 #436656 #454366 #664352

split-complementary

#646643 #435266 #564366

monochromatic

#1C1C12 #40412B #646643 #888B5B #A6A87B

Accessibility & contrast

On white

5.96

#646643 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#646643 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646643

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646643	#FFFFFF	#000000	##FFFFFF
##646643	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6341

Deuteranopia (green-blind)

#6B6444

Tritanopia (blue-blind)

#68625D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #646643;
/* rgb */ color: rgb(100, 102, 67);
/* oklch */ color: oklch(49.9% 0.052 110.9);

Tailwind

colors: {
  custom: {
    50: '#909177',
    500: '#646643',
    950: '#000000',
  },
}

SCSS

$custom: #646643;
$custom-light: #909177;
$custom-dark: #000000;

JSON

{
  "hex": "#646643",
  "rgb": {
    "r": 100,
    "g": 102,
    "b": 67
  },
  "hsl": {
    "h": 63.429,
    "s": 20.71,
    "l": 33.137
  },
  "oklch": {
    "l": 0.4991,
    "c": 0.052,
    "h": 110.9
  },
  "luminance": 0.12617
}

Semantic roles & 50–950 ramp

primary

#646643

secondary

#727094

accent

#6BBD6F

background

#F8F8F7

surface

#F0F0ED

border

#CBCBC8

text

#0C0C08

muted

#7D7D7B

Preview Lab

Preview with #646643

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

Preview Lab → · Contrast checker → · Palette generator →