#646451#646451

#646451 is a mid, muted yellow. Relative luminance 0.124; OKLCH L 49.8% C 0.029 H 107.4°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#646451
RGB	rgb(100, 100, 81)
HSL	hsl(60, 10%, 35%)
HSV	hsv(60, 19%, 39%)
CMYK	cmyk(0%, 0%, 19%, 60.8%)
CIE-LAB	lab(41.87, -3.61, 10.81)
CIE-LCH	lch(41.87, 11.40, 108.46°)
OKLab	oklab(49.76% -0.0087 0.0277)
OKLCH	oklch(49.76% 0.029 107.4)
XYZ	xyz(11.2978, 12.4179, 9.5847)
Luminance	0.1242 (WCAG relative)
Temperature	neutral
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646451 #515164

analogous

#645A51 #646451 #5A6451

triadic

#646451 #516464 #645164

tetradic

#646451 #51645A #515164 #64515A

square

#646451 #51645A #515164 #64515A

split-complementary

#646451 #515A64 #5A5164

monochromatic

#20201A #424236 #646451 #86866C #A3A38D

Accessibility & contrast

On white

6.03

#646451 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#646451 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646451

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646451	#FFFFFF	#000000	##FFFFFF
##646451	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#676250

Deuteranopia (green-blind)

#686352

Tritanopia (blue-blind)

#67615F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #646451;
/* rgb */ color: rgb(100, 100, 81);
/* oklch */ color: oklch(49.8% 0.029 107.4);

Tailwind

colors: {
  custom: {
    50: '#909082',
    500: '#646451',
    950: '#000000',
  },
}

SCSS

$custom: #646451;
$custom-light: #909082;
$custom-dark: #000000;

JSON

{
  "hex": "#646451",
  "rgb": {
    "r": 100,
    "g": 100,
    "b": 81
  },
  "hsl": {
    "h": 60,
    "s": 10.497,
    "l": 35.49
  },
  "oklch": {
    "l": 0.49762,
    "c": 0.02905,
    "h": 107.4
  },
  "luminance": 0.12418
}

Semantic roles & 50–950 ramp

primary

#646451

secondary

#808091

accent

#74B374

background

#F8F8F7

surface

#F0F0EE

border

#CBCBC9

text

#0C0C0A

muted

#7D7D7C

Preview Lab

Preview with #646451

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

Preview Lab → · Contrast checker → · Palette generator →