#646F2B#646F2B

#646F2B is a mid, moderate yellow. Relative luminance 0.143; OKLCH L 51.7% C 0.093 H 117.5°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#646F2B
RGB	rgb(100, 111, 43)
HSL	hsl(70, 44%, 30%)
HSV	hsv(70, 61%, 44%)
CMYK	cmyk(9.9%, 0%, 61.3%, 56.5%)
CIE-LAB	lab(44.59, -14.77, 35.65)
CIE-LCH	lch(44.59, 38.59, 112.50°)
OKLab	oklab(51.73% -0.0429 0.0825)
OKLCH	oklch(51.73% 0.093 117.5)
XYZ	xyz(11.3762, 14.2527, 4.4368)
Luminance	0.1425 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F2B #362B6F

analogous

#6F582B #646F2B #426F2B

triadic

#646F2B #2B646F #6F2B64

tetradic

#646F2B #2B6F58 #362B6F #6F2B42

square

#646F2B #2B6F58 #362B6F #6F2B42

split-complementary

#646F2B #2B426F #582B6F

monochromatic

#151709 #3C431A #646F2B #8C9B3C #ADBE57

Accessibility & contrast

On white

5.45

#646F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#646F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F2B

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F2B	#FFFFFF	#000000	##FFFFFF
##646F2B	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766924

Deuteranopia (green-blind)

#756A2F

Tritanopia (blue-blind)

#6A6960

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646f2b;
/* rgb */ color: rgb(100, 111, 43);
/* oklch */ color: oklch(51.7% 0.093 117.5);

Tailwind

colors: {
  custom: {
    50: '#929867',
    500: '#646f2b',
    950: '#000000',
  },
}

SCSS

$custom: #646f2b;
$custom-light: #929867;
$custom-dark: #000000;

JSON

{
  "hex": "#646f2b",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 43
  },
  "hsl": {
    "h": 69.706,
    "s": 44.156,
    "l": 30.196
  },
  "oklch": {
    "l": 0.51726,
    "c": 0.09297,
    "h": 117.5
  },
  "luminance": 0.14253
}

Semantic roles & 50–950 ramp

primary

#646F2B

secondary

#6155A1

accent

#54D469

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646F2B

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

Preview Lab → · Contrast checker → · Palette generator →