#646B15#646B15

#646B15 is a mid, moderate yellow. Relative luminance 0.133; OKLCH L 50.5% C 0.105 H 114.3°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#646B15
RGB	rgb(100, 107, 21)
HSL	hsl(65, 67%, 25%)
HSV	hsv(65, 80%, 42%)
CMYK	cmyk(6.5%, 0%, 80.4%, 58%)
CIE-LAB	lab(43.18, -14.05, 43.63)
CIE-LCH	lch(43.18, 45.84, 107.85°)
OKLab	oklab(50.54% -0.0432 0.0956)
OKLCH	oklch(50.54% 0.105 114.3)
XYZ	xyz(10.6489, 13.2791, 2.7115)
Luminance	0.1328 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646B15 #1C156B

analogous

#6B4715 #646B15 #396B15

triadic

#646B15 #15646B #6B1564

tetradic

#646B15 #156B47 #1C156B #6B1539

square

#646B15 #156B47 #1C156B #6B1539

split-complementary

#646B15 #15396B #47156B

monochromatic

#181A05 #34380B #646B15 #949E1F #C4D129

Accessibility & contrast

On white

5.74

#646B15 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#646B15 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646B15

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646B15	#FFFFFF	#000000	##FFFFFF
##646B15	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736501

Deuteranopia (green-blind)

#73671D

Tritanopia (blue-blind)

#6B645B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #646b15;
/* rgb */ color: rgb(100, 107, 21);
/* oklch */ color: oklch(50.5% 0.105 114.3);

Tailwind

colors: {
  custom: {
    50: '#93955b',
    500: '#646b15',
    950: '#000000',
  },
}

SCSS

$custom: #646b15;
$custom-light: #93955b;
$custom-dark: #000000;

JSON

{
  "hex": "#646b15",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 21
  },
  "hsl": {
    "h": 64.884,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.50537,
    "c": 0.10493,
    "h": 114.3
  },
  "luminance": 0.13279
}

Semantic roles & 50–950 ramp

primary

#646B15

secondary

#433AA2

accent

#3EEA4C

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646B15

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

Preview Lab → · Contrast checker → · Palette generator →