#646B22#646B22

#646B22 is a mid, moderate yellow. Relative luminance 0.133; OKLCH L 50.6% C 0.096 H 114.5°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#646B22
RGB	rgb(100, 107, 34)
HSL	hsl(66, 52%, 28%)
HSV	hsv(66, 68%, 42%)
CMYK	cmyk(6.5%, 0%, 68.2%, 58%)
CIE-LAB	lab(43.27, -13.29, 38.49)
CIE-LCH	lch(43.27, 40.72, 109.05°)
OKLab	oklab(50.64% -0.0398 0.0872)
OKLCH	oklch(50.64% 0.096 114.5)
XYZ	xyz(10.8022, 13.3404, 3.5190)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646B22 #29226B

analogous

#6B4D22 #646B22 #406B22

triadic

#646B22 #22646B #6B2264

tetradic

#646B22 #226B4D #29226B #6B2240

square

#646B22 #226B4D #29226B #6B2240

split-complementary

#646B22 #22406B #4D226B

monochromatic

#161707 #393D13 #646B22 #8F9931 #B7C444

Accessibility & contrast

On white

5.73

#646B22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#646B22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646B22

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646B22	#FFFFFF	#000000	##FFFFFF
##646B22	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736618

Deuteranopia (green-blind)

#726727

Tritanopia (blue-blind)

#6B655C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #646b22;
/* rgb */ color: rgb(100, 107, 34);
/* oklch */ color: oklch(50.6% 0.096 114.5);

Tailwind

colors: {
  custom: {
    50: '#929561',
    500: '#646b22',
    950: '#000000',
  },
}

SCSS

$custom: #646b22;
$custom-light: #929561;
$custom-dark: #000000;

JSON

{
  "hex": "#646b22",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 34
  },
  "hsl": {
    "h": 65.753,
    "s": 51.773,
    "l": 27.647
  },
  "oklch": {
    "l": 0.50639,
    "c": 0.0958,
    "h": 114.5
  },
  "luminance": 0.1334
}

Semantic roles & 50–950 ramp

primary

#646B22

secondary

#524A9F

accent

#4DDB5A

background

#F9F9F5

surface

#F1F1EA

border

#CBCBC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646B22

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

Preview Lab → · Contrast checker → · Palette generator →