#646E17#646E17

#646E17 is a mid, moderate yellow. Relative luminance 0.139; OKLCH L 51.3% C 0.107 H 116.1°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#646E17
RGB	rgb(100, 110, 23)
HSL	hsl(67, 65%, 26%)
HSV	hsv(67, 79%, 43%)
CMYK	cmyk(9.1%, 0%, 79.1%, 56.9%)
CIE-LAB	lab(44.12, -15.59, 43.80)
CIE-LCH	lch(44.12, 46.49, 109.59°)
OKLab	oklab(51.3% -0.0473 0.0964)
OKLCH	oklch(51.3% 0.107 116.1)
XYZ	xyz(10.9864, 13.9232, 2.9191)
Luminance	0.1392 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E17 #21176E

analogous

#6E4C17 #646E17 #386E17

triadic

#646E17 #17646E #6E1764

tetradic

#646E17 #176E4C #21176E #6E1738

square

#646E17 #176E4C #21176E #6E1738

split-complementary

#646E17 #17386E #4C176E

monochromatic

#171905 #363B0C #646E17 #92A122 #C0D32C

Accessibility & contrast

On white

5.55

#646E17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#646E17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E17

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E17	#FFFFFF	#000000	##FFFFFF
##646E17	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766803

Deuteranopia (green-blind)

#75691F

Tritanopia (blue-blind)

#6B675E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646e17;
/* rgb */ color: rgb(100, 110, 23);
/* oklch */ color: oklch(51.3% 0.107 116.1);

Tailwind

colors: {
  custom: {
    50: '#93975c',
    500: '#646e17',
    950: '#000000',
  },
}

SCSS

$custom: #646e17;
$custom-light: #93975c;
$custom-dark: #000000;

JSON

{
  "hex": "#646e17",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 23
  },
  "hsl": {
    "h": 66.897,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.51296,
    "c": 0.10735,
    "h": 116.1
  },
  "luminance": 0.13923
}

Semantic roles & 50–950 ramp

primary

#646E17

secondary

#493DA4

accent

#3FE853

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646E17

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

Preview Lab → · Contrast checker → · Palette generator →