#646E2B#646E2B

#646E2B is a mid, moderate yellow. Relative luminance 0.140; OKLCH L 51.5% C 0.092 H 116.9°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#646E2B
RGB	rgb(100, 110, 43)
HSL	hsl(69, 44%, 30%)
HSV	hsv(69, 61%, 43%)
CMYK	cmyk(9.1%, 0%, 60.9%, 56.9%)
CIE-LAB	lab(44.28, -14.22, 35.30)
CIE-LCH	lch(44.28, 38.06, 111.94°)
OKLab	oklab(51.48% -0.0414 0.0817)
OKLCH	oklch(51.48% 0.092 116.9)
XYZ	xyz(11.2677, 14.0357, 4.4006)
Luminance	0.1404 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E2B #352B6E

analogous

#6E562B #646E2B #436E2B

triadic

#646E2B #2B646E #6E2B64

tetradic

#646E2B #2B6E56 #352B6E #6E2B43

square

#646E2B #2B6E56 #352B6E #6E2B43

split-complementary

#646E2B #2B436E #562B6E

monochromatic

#141609 #3C421A #646E2B #8C9A3C #AEBD56

Accessibility & contrast

On white

5.52

#646E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#646E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E2B

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E2B	#FFFFFF	#000000	##FFFFFF
##646E2B	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756824

Deuteranopia (green-blind)

#74692F

Tritanopia (blue-blind)

#6A6860

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646e2b;
/* rgb */ color: rgb(100, 110, 43);
/* oklch */ color: oklch(51.5% 0.092 116.9);

Tailwind

colors: {
  custom: {
    50: '#929767',
    500: '#646e2b',
    950: '#000000',
  },
}

SCSS

$custom: #646e2b;
$custom-light: #929767;
$custom-dark: #000000;

JSON

{
  "hex": "#646e2b",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 43
  },
  "hsl": {
    "h": 68.955,
    "s": 43.791,
    "l": 30
  },
  "oklch": {
    "l": 0.51478,
    "c": 0.09162,
    "h": 116.9
  },
  "luminance": 0.14036
}

Semantic roles & 50–950 ramp

primary

#646E2B

secondary

#6055A0

accent

#54D467

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646E2B

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

Preview Lab → · Contrast checker → · Palette generator →