#66A970
Closest named color: Tea (#65AB7C). oklch(67.5% 0.108 147.8), rgb(102, 169, 112).
Aa
Black text reads best on this color (7.47:1).
About this color
#66A970 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.108 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.015 away. Black text reads best on it, at 7.47:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 7.47:1 |
| White text | 2.80:1 |
Values
| HEX | #66A970 |
| RGB | rgb(102, 169, 112) |
| HSL | hsl(129, 28%, 53%) |
| OKLCH | oklch(67.5% 0.108 147.8) |
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 #66A970 | 2.80:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #66A970 | 7.47:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #66A970 text on white | 2.80:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #66A970 text on black | 7.47:1 | AAA | Lc -47.9 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE3
oklch(93.7% 0.019 147.8)
-
Step 200
200
#C9E0CB
oklch(88.4% 0.038 147.7)
-
Step 300
300
#A4CDA8
oklch(80.9% 0.067 147.5)
-
Step 400
400 (this color)
#66A970
oklch(67.5% 0.108 147.8)
-
Step 500
500
#45A057
oklch(63.2% 0.138 147.8)
-
Step 600
600
#1C8A3B
oklch(55.6% 0.15 147.8)
-
Step 700
700
#08752D
oklch(49.1% 0.14 147.8)
-
Step 800
800
#0F5F26
oklch(42.6% 0.116 147.8)
-
Step 900
900
#184E24
oklch(37.7% 0.09 147.8)
-
Step 950
950
#102E16
oklch(27.1% 0.057 148.1)
#66A970 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) | #AB9E6C | 0.089 |
| Deuteranopia (no green cones) | #A09773 | 0.087 |
| Tritanopia (no blue cones) | #5CA69A | 0.062 |
| Achromatopsia (no color) | #9A9A9A | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66A970
#66A970
oklch(67.5% 0.108 147.8)
- #BB7EB9
#BB7EB9
oklch(67.5% 0.109 327.8)
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 #66A970, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.015
- Dusty Green #76A973 ΔE 0.018
- Dull Green #74A662 ΔE 0.019
- Algae #54AC68 ΔE 0.023
- Dark Seafoam Green #3EAF76 ΔE 0.032
- Off Green #6BA353 ΔE 0.033
- Asparagus #77AB56 ΔE 0.036
- Boring Green #63B365 ΔE 0.036
Use #66A970 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.