#646E2F#646E2F

#646E2F is a mid, moderate yellow. Relative luminance 0.141; OKLCH L 51.5% C 0.088 H 117.1°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#646E2F
RGB	rgb(100, 110, 47)
HSL	hsl(70, 40%, 31%)
HSV	hsv(70, 57%, 43%)
CMYK	cmyk(9.1%, 0%, 57.3%, 56.9%)
CIE-LAB	lab(44.33, -13.85, 33.33)
CIE-LCH	lch(44.33, 36.10, 112.57°)
OKLab	oklab(51.53% -0.0399 0.078)
OKLCH	oklch(51.53% 0.088 117.1)
XYZ	xyz(11.3447, 14.0665, 4.8062)
Luminance	0.1407 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E2F #392F6E

analogous

#6E582F #646E2F #446E2F

triadic

#646E2F #2F646E #6E2F64

tetradic

#646E2F #2F6E58 #392F6E #6E2F44

square

#646E2F #2F6E58 #392F6E #6E2F44

split-complementary

#646E2F #2F446E #582F6E

monochromatic

#16180A #3D431D #646E2F #8B9941 #ABBA5D

Accessibility & contrast

On white

5.51

#646E2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#646E2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E2F

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E2F	#FFFFFF	#000000	##FFFFFF
##646E2F	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756929

Deuteranopia (green-blind)

#746933

Tritanopia (blue-blind)

#6A6860

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646e2f;
/* rgb */ color: rgb(100, 110, 47);
/* oklch */ color: oklch(51.5% 0.088 117.1);

Tailwind

colors: {
  custom: {
    50: '#92976a',
    500: '#646e2f',
    950: '#000000',
  },
}

SCSS

$custom: #646e2f;
$custom-light: #92976a;
$custom-dark: #000000;

JSON

{
  "hex": "#646e2f",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 47
  },
  "hsl": {
    "h": 69.524,
    "s": 40.127,
    "l": 30.784
  },
  "oklch": {
    "l": 0.51527,
    "c": 0.08761,
    "h": 117.1
  },
  "luminance": 0.14066
}

Semantic roles & 50–950 ramp

primary

#646E2F

secondary

#65599F

accent

#58D06B

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646E2F

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

Preview Lab → · Contrast checker → · Palette generator →