#66AA8A
Closest named color: Tea (#65AB7C). oklch(68.3% 0.085 162.7), rgb(102, 170, 138).
Aa
Black text reads best on this color (7.68:1).
About this color
#66AA8A is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.085 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.021 away. Black text reads best on it, at 7.68:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 7.68:1 |
| White text | 2.73:1 |
Values
| HEX | #66AA8A |
| RGB | rgb(102, 170, 138) |
| HSL | hsl(152, 29%, 53%) |
| OKLCH | oklch(68.3% 0.085 162.7) |
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 #66AA8A | 2.73:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #66AA8A | 7.68:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #66AA8A text on white | 2.73:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #66AA8A text on black | 7.68:1 | AAA | Lc -49.1 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C9E0D3
oklch(88.6% 0.03 161)
-
Step 300
300
#A3CCB7
oklch(81% 0.053 162.7)
-
Step 400
400 (this color)
#66AA8A
oklch(68.3% 0.085 162.7)
-
Step 500
500
#409E76
oklch(63.2% 0.108 162.5)
-
Step 600
600
#0E885F
oklch(55.6% 0.117 162.9)
-
Step 700
700
#00734E
oklch(49.1% 0.107 162.4)
-
Step 800
800
#065E40
oklch(42.7% 0.091 162.6)
-
Step 900
900
#144D36
oklch(37.7% 0.071 162.4)
-
Step 950
950
#0E2D20
oklch(26.9% 0.044 163.2)
#66AA8A 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) | #A8A188 | 0.083 |
| Deuteranopia (no green cones) | #9D998C | 0.080 |
| Tritanopia (no blue cones) | #55AAA1 | 0.035 |
| Achromatopsia (no color) | #9C9C9C | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66AA8A
#66AA8A
oklch(68.3% 0.085 162.7)
- #BE84A7
#BE84A7
oklch(68.2% 0.085 342.7)
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 #66AA8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.021
- Dusty Green #76A973 ΔE 0.032
- Greeny Blue #42B395 ΔE 0.033
- Greeny Grey #7EA07A ΔE 0.035
- Grey Green #86A17D ΔE 0.040
- Dull Teal #5F9E8F ΔE 0.040
- Grey Teal #5E9B8A ΔE 0.046
- Faded Green #7BB274 ΔE 0.048
Use #66AA8A 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.