#646A1B#646A1B

#646A1B is a mid, moderate yellow. Relative luminance 0.131; OKLCH L 50.3% C 0.100 H 113.8°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#646A1B
RGB	rgb(100, 106, 27)
HSL	hsl(65, 59%, 26%)
HSV	hsv(65, 75%, 42%)
CMYK	cmyk(5.7%, 0%, 74.5%, 58.4%)
CIE-LAB	lab(42.91, -13.19, 41.12)
CIE-LCH	lch(42.91, 43.18, 107.78°)
OKLab	oklab(50.33% -0.0402 0.0915)
OKLCH	oklch(50.33% 0.1 113.8)
XYZ	xyz(10.6077, 13.0967, 3.0058)
Luminance	0.1310 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A1B #211B6A

analogous

#6A481B #646A1B #3C6A1B

triadic

#646A1B #1B646A #6A1B64

tetradic

#646A1B #1B6A48 #211B6A #6A1B3C

square

#646A1B #1B6A48 #211B6A #6A1B3C

split-complementary

#646A1B #1B3C6A #481B6A

monochromatic

#171806 #36390F #646A1B #929B27 #C0CB34

Accessibility & contrast

On white

5.80

#646A1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#646A1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A1B

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A1B	#FFFFFF	#000000	##FFFFFF
##646A1B	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72650D

Deuteranopia (green-blind)

#726621

Tritanopia (blue-blind)

#6B635B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #646a1b;
/* rgb */ color: rgb(100, 106, 27);
/* oklch */ color: oklch(50.3% 0.100 113.8);

Tailwind

colors: {
  custom: {
    50: '#93945d',
    500: '#646a1b',
    950: '#000000',
  },
}

SCSS

$custom: #646a1b;
$custom-light: #93945d;
$custom-dark: #000000;

JSON

{
  "hex": "#646a1b",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 27
  },
  "hsl": {
    "h": 64.557,
    "s": 59.398,
    "l": 26.078
  },
  "oklch": {
    "l": 0.50331,
    "c": 0.09993,
    "h": 113.8
  },
  "luminance": 0.13097
}

Semantic roles & 50–950 ramp

primary

#646A1B

secondary

#49429F

accent

#45E351

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646A1B

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

Preview Lab → · Contrast checker → · Palette generator →