#66BF89
Closest named color: Soft Green (#6FC276). oklch(73.5% 0.117 155.5), rgb(102, 191, 137).
Aa
Black text reads best on this color (9.37:1).
About this color
#66BF89 is a medium-light, moderately saturated green. In OKLCH its lightness is 73%, its chroma 0.117 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.029 away. Black text reads best on it, at 9.37:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.37:1 |
| White text | 2.23:1 |
Values
| HEX | #66BF89 |
| RGB | rgb(102, 191, 137) |
| HSL | hsl(144, 41%, 57%) |
| OKLCH | oklch(73.5% 0.117 155.5) |
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 #66BF89 | 2.23:1 | Fails | Lc -48.7 | Large or bold text, headings |
| Black text on #66BF89 | 9.37:1 | AAA | Lc 60.0 | Content text, not long reading |
| #66BF89 text on white | 2.23:1 | Fails | Lc 43.9 | Non-text elements, placeholder text |
| #66BF89 text on black | 9.37:1 | AAA | Lc -58.2 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#DFEEE4
oklch(93.5% 0.021 156.8)
-
Step 200
200
#C5E2CE
oklch(88.6% 0.041 155.4)
-
Step 300
300
#9BCFAD
oklch(80.9% 0.072 155.8)
-
Step 400
400 (this color)
#66BF89
oklch(73.5% 0.117 155.5)
-
Step 500
500
#14A360
oklch(63.1% 0.15 155.4)
-
Step 600
600
#008A4F
oklch(55.7% 0.136 155.4)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#042F19
oklch(27% 0.062 155.7)
#66BF89 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) | #BEB386 | 0.105 |
| Deuteranopia (no green cones) | #B1AA8C | 0.102 |
| Tritanopia (no blue cones) | #51BDB0 | 0.057 |
| Achromatopsia (no color) | #ADADAD | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BF89
#66BF89
oklch(73.5% 0.117 155.5)
- #D78CC6
#D78CC6
oklch(73.4% 0.117 335.4)
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 #66BF89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.029
- Greenblue #23C48B ΔE 0.038
- Faded Green #7BB274 ΔE 0.039
- Dark Mint #48C072 ΔE 0.042
- Sage Green #88B378 ΔE 0.042
- Green Blue #01C08D ΔE 0.044
- Lichen #8FB67B ΔE 0.044
- Dark Sea Green #8FBC8F ΔE 0.045
Use #66BF89 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.