#646B1C#646B1C

#646B1C is a mid, moderate yellow. Relative luminance 0.133; OKLCH L 50.6% C 0.100 H 114.4°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#646B1C
RGB	rgb(100, 107, 28)
HSL	hsl(65, 59%, 26%)
HSV	hsv(65, 74%, 42%)
CMYK	cmyk(6.5%, 0%, 73.8%, 58%)
CIE-LAB	lab(43.22, -13.68, 41.03)
CIE-LCH	lch(43.22, 43.25, 108.44°)
OKLab	oklab(50.59% -0.0415 0.0915)
OKLCH	oklch(50.59% 0.1 114.4)
XYZ	xyz(10.7231, 13.3088, 3.1024)
Luminance	0.1331 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646B1C #231C6B

analogous

#6B4B1C #646B1C #3D6B1C

triadic

#646B1C #1C646B #6B1C64

tetradic

#646B1C #1C6B4B #231C6B #6B1C3D

square

#646B1C #1C6B4B #231C6B #6B1C3D

split-complementary

#646B1C #1C3D6B #4B1C6B

monochromatic

#171806 #373A0F #646B1C #919C29 #BECB37

Accessibility & contrast

On white

5.73

#646B1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#646B1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646B1C

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646B1C	#FFFFFF	#000000	##FFFFFF
##646B1C	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#73650F

Deuteranopia (green-blind)

#736722

Tritanopia (blue-blind)

#6B645B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #646b1c;
/* rgb */ color: rgb(100, 107, 28);
/* oklch */ color: oklch(50.6% 0.100 114.4);

Tailwind

colors: {
  custom: {
    50: '#93955e',
    500: '#646b1c',
    950: '#000000',
  },
}

SCSS

$custom: #646b1c;
$custom-light: #93955e;
$custom-dark: #000000;

JSON

{
  "hex": "#646b1c",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 28
  },
  "hsl": {
    "h": 65.316,
    "s": 58.519,
    "l": 26.471
  },
  "oklch": {
    "l": 0.50586,
    "c": 0.10044,
    "h": 114.4
  },
  "luminance": 0.13309
}

Semantic roles & 50–950 ramp

primary

#646B1C

secondary

#4B43A0

accent

#46E254

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646B1C

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

Preview Lab → · Contrast checker → · Palette generator →