#646F28#646F28

#646F28 is a mid, moderate yellow. Relative luminance 0.142; OKLCH L 51.7% C 0.096 H 117.3°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#646F28
RGB	rgb(100, 111, 40)
HSL	hsl(69, 47%, 30%)
HSV	hsv(69, 64%, 44%)
CMYK	cmyk(9.9%, 0%, 64%, 56.5%)
CIE-LAB	lab(44.56, -15.02, 37.07)
CIE-LCH	lch(44.56, 40.00, 112.06°)
OKLab	oklab(51.69% -0.044 0.0851)
OKLCH	oklch(51.69% 0.096 117.3)
XYZ	xyz(11.3232, 14.2315, 4.1575)
Luminance	0.1423 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F28 #33286F

analogous

#6F5728 #646F28 #416F28

triadic

#646F28 #28646F #6F2864

tetradic

#646F28 #286F57 #33286F #6F2841

square

#646F28 #286F57 #33286F #6F2841

split-complementary

#646F28 #28416F #57286F

monochromatic

#141608 #3B4218 #646F28 #8D9C38 #AFC051

Accessibility & contrast

On white

5.46

#646F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#646F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F28

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F28	#FFFFFF	#000000	##FFFFFF
##646F28	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766920

Deuteranopia (green-blind)

#756A2D

Tritanopia (blue-blind)

#6A6960

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646f28;
/* rgb */ color: rgb(100, 111, 40);
/* oklch */ color: oklch(51.7% 0.096 117.3);

Tailwind

colors: {
  custom: {
    50: '#929865',
    500: '#646f28',
    950: '#000000',
  },
}

SCSS

$custom: #646f28;
$custom-light: #929865;
$custom-dark: #000000;

JSON

{
  "hex": "#646f28",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 40
  },
  "hsl": {
    "h": 69.296,
    "s": 47.02,
    "l": 29.608
  },
  "oklch": {
    "l": 0.51692,
    "c": 0.09577,
    "h": 117.3
  },
  "luminance": 0.14231
}

Semantic roles & 50–950 ramp

primary

#646F28

secondary

#5E51A1

accent

#51D766

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646F28

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

Preview Lab → · Contrast checker → · Palette generator →