#668B2B#668B2B

#668B2B is a mid, vivid yellow-green. Relative luminance 0.215; OKLCH L 58.9% C 0.131 H 128.1°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#668B2B
RGB	rgb(102, 139, 43)
HSL	hsl(83, 53%, 36%)
HSV	hsv(83, 69%, 55%)
CMYK	cmyk(26.6%, 0%, 69.1%, 45.5%)
CIE-LAB	lab(53.45, -28.28, 45.24)
CIE-LCH	lch(53.45, 53.35, 122.01°)
OKLab	oklab(58.91% -0.0805 0.1027)
OKLCH	oklch(58.91% 0.131 128.1)
XYZ	xyz(15.1481, 21.4641, 5.6299)
Luminance	0.2146 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668B2B #502B8B

analogous

#8B802B #668B2B #368B2B

triadic

#668B2B #2B668B #8B2B66

tetradic

#668B2B #2B8B80 #502B8B #8B2B36

square

#668B2B #2B8B80 #502B8B #8B2B36

split-complementary

#668B2B #2B368B #802B8B

monochromatic

#212E0E #445C1D #668B2B #88BA39 #A5CE62

Accessibility & contrast

On white

3.97

#668B2B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#668B2B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668B2B

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668B2B	#FFFFFF	#000000	##000000
##668B2B	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92811D

Deuteranopia (green-blind)

#8D7F33

Tritanopia (blue-blind)

#698578

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #668b2b;
/* rgb */ color: rgb(102, 139, 43);
/* oklch */ color: oklch(58.9% 0.131 128.1);

Tailwind

colors: {
  custom: {
    50: '#95ad6a',
    500: '#668b2b',
    950: '#000000',
  },
}

SCSS

$custom: #668b2b;
$custom-light: #95ad6a;
$custom-dark: #000000;

JSON

{
  "hex": "#668b2b",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 43
  },
  "hsl": {
    "h": 83.125,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.58913,
    "c": 0.13052,
    "h": 128.1
  },
  "luminance": 0.21464
}

Semantic roles & 50–950 ramp

primary

#668B2B

secondary

#7F5DB5

accent

#4CDC83

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1007

muted

#7E7F7A

Preview Lab

Preview with #668B2B

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

Preview Lab → · Contrast checker → · Palette generator →