#646F27#646F27

#646F27 is a mid, moderate yellow. Relative luminance 0.142; OKLCH L 51.7% C 0.097 H 117.3°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#646F27
RGB	rgb(100, 111, 39)
HSL	hsl(69, 48%, 29%)
HSV	hsv(69, 65%, 44%)
CMYK	cmyk(9.9%, 0%, 64.9%, 56.5%)
CIE-LAB	lab(44.55, -15.10, 37.54)
CIE-LCH	lch(44.55, 40.46, 111.92°)
OKLab	oklab(51.68% -0.0443 0.0859)
OKLCH	oklch(51.68% 0.097 117.3)
XYZ	xyz(11.3064, 14.2248, 4.0691)
Luminance	0.1422 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F27 #32276F

analogous

#6F5627 #646F27 #406F27

triadic

#646F27 #27646F #6F2764

tetradic

#646F27 #276F56 #32276F #6F2740

square

#646F27 #276F56 #32276F #6F2740

split-complementary

#646F27 #27406F #56276F

monochromatic

#141708 #3B4217 #646F27 #8D9C37 #B0C14F

Accessibility & contrast

On white

5.46

#646F27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#646F27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F27

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F27	#FFFFFF	#000000	##FFFFFF
##646F27	1.00	5.46	3.84	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#76691E

Deuteranopia (green-blind)

#756A2C

Tritanopia (blue-blind)

#6A6960

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646f27;
/* rgb */ color: rgb(100, 111, 39);
/* oklch */ color: oklch(51.7% 0.097 117.3);

Tailwind

colors: {
  custom: {
    50: '#929865',
    500: '#646f27',
    950: '#000000',
  },
}

SCSS

$custom: #646f27;
$custom-light: #929865;
$custom-dark: #000000;

JSON

{
  "hex": "#646f27",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 39
  },
  "hsl": {
    "h": 69.167,
    "s": 48,
    "l": 29.412
  },
  "oklch": {
    "l": 0.51681,
    "c": 0.09667,
    "h": 117.3
  },
  "luminance": 0.14225
}

Semantic roles & 50–950 ramp

primary

#646F27

secondary

#5D50A2

accent

#50D865

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646F27

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

Preview Lab → · Contrast checker → · Palette generator →