#66BF72
Closest named color: Soft Green (#6FC276). oklch(73% 0.14 146.9), rgb(102, 191, 114).
Aa
Black text reads best on this color (9.26:1).
About this color
#66BF72 is a medium-light, moderately saturated green. In OKLCH its lightness is 73%, its chroma 0.140 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.013 away. Black text reads best on it, at 9.26:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.140) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.26:1 |
| White text | 2.26:1 |
Values
| HEX | #66BF72 |
| RGB | rgb(102, 191, 114) |
| HSL | hsl(128, 41%, 57%) |
| OKLCH | oklch(73% 0.14 146.9) |
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 #66BF72 | 2.26:1 | Fails | Lc -49.3 | Large or bold text, headings |
| Black text on #66BF72 | 9.26:1 | AAA | Lc 59.5 | Large or bold text, headings |
| #66BF72 text on white | 2.26:1 | Fails | Lc 44.5 | Non-text elements, placeholder text |
| #66BF72 text on black | 9.26:1 | AAA | Lc -57.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C5E2C7
oklch(88.4% 0.048 147.1)
-
Step 300
300
#9BD0A0
oklch(80.8% 0.087 147.2)
-
Step 400
400 (this color)
#66BF72
oklch(73% 0.14 146.9)
-
Step 500
500
#1CA541
oklch(63.2% 0.179 147)
-
Step 600
600
#008B30
oklch(55.5% 0.165 146.9)
-
Step 700
700
#007527
oklch(49% 0.146 146.9)
-
Step 800
800
#00601F
oklch(42.6% 0.127 147)
-
Step 900
900
#005018
oklch(37.6% 0.112 146.9)
-
Step 950
950
#05300E
oklch(27.2% 0.075 146.6)
#66BF72 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) | #C1B16C | 0.111 |
| Deuteranopia (no green cones) | #B4A977 | 0.109 |
| Tritanopia (no blue cones) | #58BBAC | 0.083 |
| Achromatopsia (no color) | #ACACAC | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BF72
#66BF72
oklch(73% 0.14 146.9)
- #D587D5
#D587D5
oklch(73% 0.139 326.9)
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 #66BF72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.013
- Dark Mint #48C072 ΔE 0.022
- Boring Green #63B365 ΔE 0.034
- Turtle Green #75B84F ΔE 0.036
- Dark Mint Green #20C073 ΔE 0.040
- Algae Green #21C36F ΔE 0.041
- Greenblue #23C48B ΔE 0.041
- Faded Green #7BB274 ΔE 0.042
Use #66BF72 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.