#66A271
Closest named color: Tea (#65AB7C). oklch(65.8% 0.096 149), rgb(102, 162, 113).
Aa
Black text reads best on this color (6.97:1).
About this color
#66A271 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.096 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.026 away. Black text reads best on it, at 6.97:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 6.97:1 |
| White text | 3.01:1 |
Values
| HEX | #66A271 |
| RGB | rgb(102, 162, 113) |
| HSL | hsl(131, 24%, 52%) |
| OKLCH | oklch(65.8% 0.096 149) |
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 #66A271 | 3.01:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #66A271 | 6.97:1 | AA | Lc 47.3 | Large or bold text, headings |
| #66A271 text on white | 3.01:1 | AA large text | Lc 56.7 | Large or bold text, headings |
| #66A271 text on black | 6.97:1 | AA | Lc -45.0 | 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 500.
-
Step 50
50
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4ECE5
oklch(93.5% 0.013 149.2)
-
Step 200
200
#CEDED0
oklch(88.5% 0.026 149.1)
-
Step 300
300
#ACCAB0
oklch(81% 0.048 148.9)
-
Step 400
400
#80AE87
oklch(70.7% 0.075 148.8)
-
Step 500
500 (this color)
#66A271
oklch(65.8% 0.096 149)
-
Step 600
600
#428451
oklch(55.6% 0.104 149.4)
-
Step 700
700
#347041
oklch(49.2% 0.097 148.8)
-
Step 800
800
#2C5B36
oklch(42.7% 0.08 149)
-
Step 900
900
#284B2F
oklch(37.8% 0.063 149.1)
-
Step 950
950
#182C1C
oklch(27.1% 0.039 149.5)
#66A271 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) | #A3986E | 0.080 |
| Deuteranopia (no green cones) | #9A9274 | 0.079 |
| Tritanopia (no blue cones) | #5DA095 | 0.054 |
| Achromatopsia (no color) | #959595 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66A271
#66A271
oklch(65.8% 0.096 149)
- #B27CAE
#B27CAE
oklch(65.7% 0.095 329.1)
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 #66A271, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.026
- Dusty Green #76A973 ΔE 0.028
- Dull Green #74A662 ΔE 0.029
- Greeny Grey #7EA07A ΔE 0.033
- Moss #769958 ΔE 0.034
- Off Green #6BA353 ΔE 0.038
- Algae #54AC68 ΔE 0.038
- Muted Green #5FA052 ΔE 0.040
Use #66A271 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.