#646D2F#646D2F

#646D2F is a mid, moderate yellow. Relative luminance 0.139; OKLCH L 51.3% C 0.086 H 116.4°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#646D2F
RGB	rgb(100, 109, 47)
HSL	hsl(69, 40%, 31%)
HSV	hsv(69, 57%, 43%)
CMYK	cmyk(8.3%, 0%, 56.9%, 57.3%)
CIE-LAB	lab(44.02, -13.30, 32.98)
CIE-LCH	lch(44.02, 35.56, 111.97°)
OKLab	oklab(51.28% -0.0383 0.0772)
OKLCH	oklch(51.28% 0.086 116.4)
XYZ	xyz(11.2374, 13.8520, 4.7705)
Luminance	0.1385 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D2F #382F6D

analogous

#6D572F #646D2F #456D2F

triadic

#646D2F #2F646D #6D2F64

tetradic

#646D2F #2F6D57 #382F6D #6D2F45

square

#646D2F #2F6D57 #382F6D #6D2F45

split-complementary

#646D2F #2F456D #572F6D

monochromatic

#16170A #3D421D #646D2F #8B9841 #ACB95D

Accessibility & contrast

On white

5.57

#646D2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#646D2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D2F

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D2F	#FFFFFF	#000000	##FFFFFF
##646D2F	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#746829

Deuteranopia (green-blind)

#736933

Tritanopia (blue-blind)

#6A675F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646d2f;
/* rgb */ color: rgb(100, 109, 47);
/* oklch */ color: oklch(51.3% 0.086 116.4);

Tailwind

colors: {
  custom: {
    50: '#92966a',
    500: '#646d2f',
    950: '#000000',
  },
}

SCSS

$custom: #646d2f;
$custom-light: #92966a;
$custom-dark: #000000;

JSON

{
  "hex": "#646d2f",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 47
  },
  "hsl": {
    "h": 68.71,
    "s": 39.744,
    "l": 30.588
  },
  "oklch": {
    "l": 0.5128,
    "c": 0.08623,
    "h": 116.4
  },
  "luminance": 0.13852
}

Semantic roles & 50–950 ramp

primary

#646D2F

secondary

#63599E

accent

#58D06A

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646D2F

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

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