#66A385
Closest named color: Dull Teal (#5F9E8F). oklch(66.5% 0.078 161.9), rgb(102, 163, 133).
Aa
Black text reads best on this color (7.14:1).
About this color
#66A385 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.078 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.025 away. Black text reads best on it, at 7.14:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.14:1 |
| White text | 2.94:1 |
Values
| HEX | #66A385 |
| RGB | rgb(102, 163, 133) |
| HSL | hsl(150, 25%, 52%) |
| OKLCH | oklch(66.5% 0.078 161.9) |
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 #66A385 | 2.94:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #66A385 | 7.14:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #66A385 text on white | 2.94:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #66A385 text on black | 7.14:1 | AAA | Lc -46.0 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#ACC9B9
oklch(81% 0.038 161.3)
-
Step 400
400
#7EAD95
oklch(70.7% 0.061 162.1)
-
Step 500
500 (this color)
#66A385
oklch(66.5% 0.078 161.9)
-
Step 600
600
#3F8364
oklch(55.6% 0.085 162.1)
-
Step 700
700
#316F53
oklch(49.2% 0.079 161.9)
-
Step 800
800
#2A5A44
oklch(42.7% 0.065 162)
-
Step 900
900
#274A39
oklch(37.7% 0.051 161.5)
-
Step 950
950
#172B22
oklch(26.9% 0.031 164)
#66A385 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) | #A19B83 | 0.075 |
| Deuteranopia (no green cones) | #979487 | 0.072 |
| Tritanopia (no blue cones) | #58A39A | 0.032 |
| Achromatopsia (no color) | #969696 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66A385
#66A385
oklch(66.5% 0.078 161.9)
- #B681A1
#B681A1
oklch(66.6% 0.078 342.5)
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 #66A385, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.025
- Greeny Grey #7EA07A ΔE 0.028
- Grey Teal #5E9B8A ΔE 0.029
- Tea #65AB7C ΔE 0.030
- Grey Green #86A17D ΔE 0.036
- Dusty Green #76A973 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.047
- Greeny Blue #42B395 ΔE 0.048
Use #66A385 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.