#646D0F#646D0F

#646D0F is a mid, moderate yellow. Relative luminance 0.137; OKLCH L 51.0% C 0.110 H 115.4°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#646D0F
RGB	rgb(100, 109, 15)
HSL	hsl(66, 76%, 24%)
HSV	hsv(66, 86%, 43%)
CMYK	cmyk(8.3%, 0%, 86.2%, 57.3%)
CIE-LAB	lab(43.77, -15.38, 46.04)
CIE-LCH	lch(43.77, 48.54, 108.48°)
OKLab	oklab(51% -0.0474 0.0996)
OKLCH	oklch(51% 0.11 115.4)
XYZ	xyz(10.8107, 13.6813, 2.5231)
Luminance	0.1368 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D0F #180F6D

analogous

#6D470F #646D0F #356D0F

triadic

#646D0F #0F646D #6D0F64

tetradic

#646D0F #0F6D47 #180F6D #6D0F35

square

#646D0F #0F6D47 #180F6D #6D0F35

split-complementary

#646D0F #0F356D #470F6D

monochromatic

#191B04 #333708 #646D0F #95A316 #C7D91E

Accessibility & contrast

On white

5.62

#646D0F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#646D0F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D0F

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D0F	#FFFFFF	#000000	##FFFFFF
##646D0F	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756700

Deuteranopia (green-blind)

#756819

Tritanopia (blue-blind)

#6B665C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646d0f;
/* rgb */ color: rgb(100, 109, 15);
/* oklch */ color: oklch(51.0% 0.110 115.4);

Tailwind

colors: {
  custom: {
    50: '#939658',
    500: '#646d0f',
    950: '#000000',
  },
}

SCSS

$custom: #646d0f;
$custom-light: #939658;
$custom-dark: #000000;

JSON

{
  "hex": "#646d0f",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 15
  },
  "hsl": {
    "h": 65.745,
    "s": 75.806,
    "l": 24.314
  },
  "oklch": {
    "l": 0.51003,
    "c": 0.11031,
    "h": 115.4
  },
  "luminance": 0.13681
}

Semantic roles & 50–950 ramp

primary

#646D0F

secondary

#3E33A5

accent

#35F248

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646D0F

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

Preview Lab → · Contrast checker → · Palette generator →