#669D21#669D21

#669D21 is a light, vivid yellow-green. Relative luminance 0.270; OKLCH L 63.4% C 0.160 H 131.3°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#669D21
RGB	rgb(102, 157, 33)
HSL	hsl(87, 65%, 37%)
HSV	hsv(87, 79%, 62%)
CMYK	cmyk(35%, 0%, 79%, 38.4%)
CIE-LAB	lab(59.02, -37.23, 54.43)
CIE-LCH	lch(59.02, 65.95, 124.37°)
OKLab	oklab(63.42% -0.1057 0.1204)
OKLCH	oklch(63.42% 0.16 131.3)
XYZ	xyz(17.8108, 27.0478, 5.7209)
Luminance	0.2705 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669D21 #58219D

analogous

#9D9621 #669D21 #289D21

triadic

#669D21 #21669D #9D2166

tetradic

#669D21 #219D96 #58219D #9D2128

square

#669D21 #219D96 #58219D #9D2128

split-complementary

#669D21 #21289D #96219D

monochromatic

#24380C #456A16 #669D21 #87D02C #A3DD5C

Accessibility & contrast

On white

3.28

#669D21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#669D21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669D21

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669D21	#FFFFFF	#000000	##000000
##669D21	1.00	3.28	6.41	6.41
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49100

Deuteranopia (green-blind)

#9D8D2E

Tritanopia (blue-blind)

#689686

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #669d21;
/* rgb */ color: rgb(102, 157, 33);
/* oklch */ color: oklch(63.4% 0.160 131.3);

Tailwind

colors: {
  custom: {
    50: '#96ba67',
    500: '#669d21',
    950: '#000000',
  },
}

SCSS

$custom: #669d21;
$custom-light: #96ba67;
$custom-dark: #000000;

JSON

{
  "hex": "#669d21",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 33
  },
  "hsl": {
    "h": 86.613,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.63421,
    "c": 0.16024,
    "h": 131.3
  },
  "luminance": 0.27049
}

Semantic roles & 50–950 ramp

primary

#669D21

secondary

#8759C1

accent

#40E88A

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1106

muted

#7E807A

Preview Lab

Preview with #669D21

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

Preview Lab → · Contrast checker → · Palette generator →