#646E1D#646E1D

#646E1D 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	#646E1D
RGB	rgb(100, 110, 29)
HSL	hsl(67, 58%, 27%)
HSV	hsv(67, 74%, 43%)
CMYK	cmyk(9.1%, 0%, 73.6%, 56.9%)
CIE-LAB	lab(44.16, -15.26, 41.54)
CIE-LCH	lch(44.16, 44.26, 110.17°)
OKLab	oklab(51.34% -0.0458 0.0927)
OKLCH	oklch(51.34% 0.103 116.3)
XYZ	xyz(11.0535, 13.9500, 3.2725)
Luminance	0.1395 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E1D #271D6E

analogous

#6E4F1D #646E1D #3C6E1D

triadic

#646E1D #1D646E #6E1D64

tetradic

#646E1D #1D6E4F #271D6E #6E1D3C

square

#646E1D #1D6E4F #271D6E #6E1D3C

split-complementary

#646E1D #1D3C6E #4F1D6E

monochromatic

#161806 #383E10 #646E1D #909E2A #B9CB3A

Accessibility & contrast

On white

5.54

#646E1D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#646E1D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E1D

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E1D	#FFFFFF	#000000	##FFFFFF
##646E1D	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)

#76680F

Deuteranopia (green-blind)

#756923

Tritanopia (blue-blind)

#6B675E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646e1d;
/* rgb */ color: rgb(100, 110, 29);
/* oklch */ color: oklch(51.3% 0.103 116.3);

Tailwind

colors: {
  custom: {
    50: '#93975f',
    500: '#646e1d',
    950: '#000000',
  },
}

SCSS

$custom: #646e1d;
$custom-light: #93975f;
$custom-dark: #000000;

JSON

{
  "hex": "#646e1d",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 29
  },
  "hsl": {
    "h": 67.407,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.5134,
    "c": 0.10343,
    "h": 116.3
  },
  "luminance": 0.1395
}

Semantic roles & 50–950 ramp

primary

#646E1D

secondary

#5044A2

accent

#46E159

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646E1D

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

Preview Lab → · Contrast checker → · Palette generator →