#66B277
Closest named color: Faded Green (#7BB274). oklch(69.9% 0.115 149.8), rgb(102, 178, 119).
Aa
Black text reads best on this color (8.19:1).
About this color
#66B277 is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.115 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Faded Green (#7BB274), ΔE 0.021 away. Black text reads best on it, at 8.19:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Faded Green (#7BB274) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #66B277 |
| RGB | rgb(102, 178, 119) |
| HSL | hsl(133, 33%, 55%) |
| OKLCH | oklch(69.9% 0.115 149.8) |
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 #66B277 | 2.56:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #66B277 | 8.19:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #66B277 text on white | 2.56:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #66B277 text on black | 8.19:1 | AAA | Lc -52.0 | 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 400.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C7E1CB
oklch(88.5% 0.041 149.8)
-
Step 300
300
#A0CEA8
oklch(80.8% 0.072 149.8)
-
Step 400
400 (this color)
#66B277
oklch(69.9% 0.115 149.8)
-
Step 500
500
#37A157
oklch(63% 0.146 149.9)
-
Step 600
600
#008B3E
oklch(55.6% 0.154 149.9)
-
Step 700
700
#007533
oklch(49.1% 0.136 149.9)
-
Step 800
800
#006028
oklch(42.7% 0.119 149.7)
-
Step 900
900
#0D4F24
oklch(37.7% 0.096 149.9)
-
Step 950
950
#0B2E15
oklch(26.8% 0.061 149.7)
#66B277 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) | #B3A673 | 0.097 |
| Deuteranopia (no green cones) | #A89F7A | 0.094 |
| Tritanopia (no blue cones) | #59AFA3 | 0.065 |
| Achromatopsia (no color) | #A2A2A2 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66B277
#66B277
oklch(69.9% 0.115 149.8)
- #C683C0
#C683C0
oklch(69.8% 0.115 329.9)
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 #66B277, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Green #7BB274 ΔE 0.021
- Tea #65AB7C ΔE 0.024
- Boring Green #63B365 ΔE 0.025
- Dusty Green #76A973 ΔE 0.027
- Algae #54AC68 ΔE 0.031
- Dark Seafoam Green #3EAF76 ΔE 0.034
- Medium Sea Green #3CB371 ΔE 0.034
- Sage #87AE73 ΔE 0.035
Use #66B277 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.