#646554#646554

#646554 is a mid, muted yellow. Relative luminance 0.127; OKLCH L 50.1% C 0.026 H 110.1°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#646554
RGB	rgb(100, 101, 84)
HSL	hsl(64, 9%, 36%)
HSV	hsv(64, 17%, 40%)
CMYK	cmyk(1%, 0%, 16.8%, 60.4%)
CIE-LAB	lab(42.24, -3.68, 9.52)
CIE-LCH	lch(42.24, 10.20, 111.12°)
OKLab	oklab(50.08% -0.0089 0.0245)
OKLCH	oklch(50.08% 0.026 110.1)
XYZ	xyz(11.5093, 12.6569, 10.2225)
Luminance	0.1266 (WCAG relative)
Temperature	neutral
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646554 #555465

analogous

#655E54 #646554 #5C6554

triadic

#646554 #546465 #655464

tetradic

#646554 #54655E #555465 #65545C

square

#646554 #54655E #555465 #65545C

split-complementary

#646554 #545C65 #5E5465

monochromatic

#22221C #434438 #646554 #858670 #A2A390

Accessibility & contrast

On white

5.95

#646554 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#646554 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646554

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646554	#FFFFFF	#000000	##FFFFFF
##646554	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#686353

Deuteranopia (green-blind)

#686455

Tritanopia (blue-blind)

#666360

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #646554;
/* rgb */ color: rgb(100, 101, 84);
/* oklch */ color: oklch(50.1% 0.026 110.1);

Tailwind

colors: {
  custom: {
    50: '#909084',
    500: '#646554',
    950: '#000000',
  },
}

SCSS

$custom: #646554;
$custom-light: #909084;
$custom-dark: #000000;

JSON

{
  "hex": "#646554",
  "rgb": {
    "r": 100,
    "g": 101,
    "b": 84
  },
  "hsl": {
    "h": 63.529,
    "s": 9.189,
    "l": 36.275
  },
  "oklch": {
    "l": 0.50077,
    "c": 0.02609,
    "h": 110.1
  },
  "luminance": 0.12657
}

Semantic roles & 50–950 ramp

primary

#646554

secondary

#848392

accent

#76B279

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0C0A

muted

#7D7D7C

Preview Lab

Preview with #646554

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

Preview Lab → · Contrast checker → · Palette generator →