#646E1E#646E1E

#646E1E is a mid, moderate yellow. Relative luminance 0.140; OKLCH L 51.3% C 0.103 H 116.3°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#646E1E
RGB	rgb(100, 110, 30)
HSL	hsl(68, 57%, 27%)
HSV	hsv(68, 73%, 43%)
CMYK	cmyk(9.1%, 0%, 72.7%, 56.9%)
CIE-LAB	lab(44.17, -15.20, 41.14)
CIE-LCH	lch(44.17, 43.86, 110.28°)
OKLab	oklab(51.35% -0.0455 0.0921)
OKLCH	oklch(51.35% 0.103 116.3)
XYZ	xyz(11.0661, 13.9551, 3.3387)
Luminance	0.1396 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E1E #281E6E

analogous

#6E501E #646E1E #3C6E1E

triadic

#646E1E #1E646E #6E1E64

tetradic

#646E1E #1E6E50 #281E6E #6E1E3C

square

#646E1E #1E6E50 #281E6E #6E1E3C

split-complementary

#646E1E #1E3C6E #501E6E

monochromatic

#161807 #383E11 #646E1E #909E2B #B8CA3C

Accessibility & contrast

On white

5.54

#646E1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#646E1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E1E

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E1E	#FFFFFF	#000000	##FFFFFF
##646E1E	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766811

Deuteranopia (green-blind)

#756924

Tritanopia (blue-blind)

#6B685E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646e1e;
/* rgb */ color: rgb(100, 110, 30);
/* oklch */ color: oklch(51.3% 0.103 116.3);

Tailwind

colors: {
  custom: {
    50: '#93975f',
    500: '#646e1e',
    950: '#000000',
  },
}

SCSS

$custom: #646e1e;
$custom-light: #93975f;
$custom-dark: #000000;

JSON

{
  "hex": "#646e1e",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 30
  },
  "hsl": {
    "h": 67.5,
    "s": 57.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.51348,
    "c": 0.1027,
    "h": 116.3
  },
  "luminance": 0.13955
}

Semantic roles & 50–950 ramp

primary

#646E1E

secondary

#5146A2

accent

#47E05B

background

#F9F9F5

surface

#F2F2EA

border

#CCCCC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646E1E

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

Preview Lab → · Contrast checker → · Palette generator →