#66DF74
Closest named color: Weird Green (#3AE57F). oklch(81% 0.183 145.9), rgb(102, 223, 116).
Aa
Black text reads best on this color (12.37:1).
About this color
#66DF74 is a light, vivid green. In OKLCH its lightness is 81%, its chroma 0.183 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Weird Green (#3AE57F), ΔE 0.025 away. Black text reads best on it, at 12.37:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Weird Green (#3AE57F) |
| Black text | 12.37:1 |
| White text | 1.69:1 |
Values
| HEX | #66DF74 |
| RGB | rgb(102, 223, 116) |
| HSL | hsl(127, 65%, 64%) |
| OKLCH | oklch(81% 0.183 145.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #66DF74 | 1.69:1 | Fails | Lc -33.7 | Non-text elements, placeholder text |
| Black text on #66DF74 | 12.37:1 | AAA | Lc 73.8 | Content text, not long reading |
| #66DF74 text on white | 1.69:1 | Fails | Lc 30.0 | Dividers and decoration only |
| #66DF74 text on black | 12.37:1 | AAA | Lc -72.8 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#ECFAEC
oklch(97.1% 0.024 145.4)
-
Step 100
100
#D4F4D5
oklch(93.6% 0.053 146)
-
Step 200
200
#AEECB1
oklch(88.6% 0.102 145.9)
-
Step 300
300 (this color)
#66DF74
oklch(81% 0.183 145.9)
-
Step 400
400
#00C23E
oklch(70.8% 0.217 145.9)
-
Step 500
500
#00A634
oklch(63.1% 0.193 145.9)
-
Step 600
600
#008C2A
oklch(55.7% 0.171 145.8)
-
Step 700
700
#007622
oklch(49.2% 0.151 145.8)
-
Step 800
800
#00601A
oklch(42.5% 0.131 145.8)
-
Step 900
900
#005115
oklch(37.8% 0.116 146)
-
Step 950
950
#003009
oklch(26.9% 0.082 146)
#66DF74 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #E2CD6B | 0.141 |
| Deuteranopia (no green cones) | #D2C27B | 0.140 |
| Tritanopia (no blue cones) | #4FDAC6 | 0.110 |
| Achromatopsia (no color) | #C7C7C7 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66DF74
#66DF74
oklch(81% 0.183 145.9)
- #FB93FF
#FB93FF
oklch(80.9% 0.182 325.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #66DF74, closest first.
No curated palette has a color within ΔE 0.04 of #66DF74.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Weird Green #3AE57F ΔE 0.025
- Fresh Green #69D84F ΔE 0.035
- Aqua Green #12E193 ΔE 0.043
- Turquoise Green #04F489 ΔE 0.057
- Kiwi Green #8EE53F ΔE 0.058
- Toxic Green #61DE2A ΔE 0.059
- Seaweed #18D17B ΔE 0.059
- Apple #6ECB3C ΔE 0.063
Use #66DF74 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.