#646E5C#646E5C

#646E5C is a mid, muted yellow-green. Relative luminance 0.146; OKLCH L 52.4% C 0.030 H 131.2°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#646E5C
RGB	rgb(100, 110, 92)
HSL	hsl(93, 9%, 40%)
HSV	hsv(93, 16%, 43%)
CMYK	cmyk(9.1%, 0%, 16.4%, 56.9%)
CIE-LAB	lab(45.13, -7.45, 8.78)
CIE-LCH	lch(45.13, 11.51, 130.31°)
OKLab	oklab(52.43% -0.0198 0.0227)
OKLCH	oklch(52.43% 0.03 131.2)
XYZ	xyz(12.7629, 14.6338, 12.2754)
Luminance	0.1463 (WCAG relative)
Temperature	neutral
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E5C #665C6E

analogous

#6D6E5C #646E5C #5C6E5D

triadic

#646E5C #5C646E #6E5C64

tetradic

#646E5C #5C6D6E #665C6E #6E5D5C

square

#646E5C #5C6D6E #665C6E #6E5D5C

split-complementary

#646E5C #5D5C6E #6E5C6D

monochromatic

#272B24 #464D40 #646E5C #828F79 #A1AA9A

Accessibility & contrast

On white

5.35

#646E5C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#646E5C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E5C

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E5C	#FFFFFF	#000000	##FFFFFF
##646E5C	1.00	5.35	3.93	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706B5B

Deuteranopia (green-blind)

#6E6B5D

Tritanopia (blue-blind)

#656C69

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #646e5c;
/* rgb */ color: rgb(100, 110, 92);
/* oklch */ color: oklch(52.4% 0.030 131.2);

Tailwind

colors: {
  custom: {
    50: '#90978a',
    500: '#646e5c',
    950: '#000000',
  },
}

SCSS

$custom: #646e5c;
$custom-light: #90978a;
$custom-dark: #000000;

JSON

{
  "hex": "#646e5c",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 92
  },
  "hsl": {
    "h": 93.333,
    "s": 8.911,
    "l": 39.608
  },
  "oklch": {
    "l": 0.52427,
    "c": 0.03012,
    "h": 131.2
  },
  "luminance": 0.14634
}

Semantic roles & 50–950 ramp

primary

#646E5C

secondary

#948C9A

accent

#76B297

background

#F8F9F8

surface

#F0F2F0

border

#CBCCCB

text

#0C0D0B

muted

#7D7E7C

Preview Lab

Preview with #646E5C

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

Preview Lab → · Contrast checker → · Palette generator →