#668B1F#668B1F

#668B1F is a mid, vivid yellow-green. Relative luminance 0.214; OKLCH L 58.8% C 0.138 H 127.2°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#668B1F
RGB	rgb(102, 139, 31)
HSL	hsl(81, 64%, 33%)
HSV	hsv(81, 78%, 55%)
CMYK	cmyk(26.6%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(53.37, -29.06, 49.77)
CIE-LCH	lch(53.37, 57.63, 120.28°)
OKLab	oklab(58.82% -0.0837 0.1103)
OKLCH	oklch(58.82% 0.138 127.2)
XYZ	xyz(14.9595, 21.3886, 4.6363)
Luminance	0.2139 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668B1F #441F8B

analogous

#8B7A1F #668B1F #308B1F

triadic

#668B1F #1F668B #8B1F66

tetradic

#668B1F #1F8B7A #441F8B #8B1F30

square

#668B1F #1F8B7A #441F8B #8B1F30

split-complementary

#668B1F #1F308B #7A1F8B

monochromatic

#1D2709 #415914 #668B1F #8BBD2A #A8D74D

Accessibility & contrast

On white

3.98

#668B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#668B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668B1F

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668B1F	#FFFFFF	#000000	##000000
##668B1F	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928105

Deuteranopia (green-blind)

#8D7F2A

Tritanopia (blue-blind)

#6A8477

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #668b1f;
/* rgb */ color: rgb(102, 139, 31);
/* oklch */ color: oklch(58.8% 0.138 127.2);

Tailwind

colors: {
  custom: {
    50: '#95ad64',
    500: '#668b1f',
    950: '#000000',
  },
}

SCSS

$custom: #668b1f;
$custom-light: #95ad64;
$custom-dark: #000000;

JSON

{
  "hex": "#668b1f",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 80.556,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.5882,
    "c": 0.13846,
    "h": 127.2
  },
  "luminance": 0.21389
}

Semantic roles & 50–950 ramp

primary

#668B1F

secondary

#724CBA

accent

#41E77A

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #668B1F

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

Preview Lab → · Contrast checker → · Palette generator →