#66C27E
Closest named color: Soft Green (#6FC276). oklch(74% 0.132 150.5), rgb(102, 194, 126).
Aa
Black text reads best on this color (9.58:1).
About this color
#66C27E is a medium-light, moderately saturated green. In OKLCH its lightness is 74%, its chroma 0.132 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.011 away. Black text reads best on it, at 9.58:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.58:1 |
| White text | 2.19:1 |
Values
| HEX | #66C27E |
| RGB | rgb(102, 194, 126) |
| HSL | hsl(136, 43%, 58%) |
| OKLCH | oklch(74% 0.132 150.5) |
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 #66C27E | 2.19:1 | Fails | Lc -47.7 | Large or bold text, headings |
| Black text on #66C27E | 9.58:1 | AAA | Lc 61.0 | Content text, not long reading |
| #66C27E text on white | 2.19:1 | Fails | Lc 42.9 | Non-text elements, placeholder text |
| #66C27E text on black | 9.58:1 | AAA | Lc -59.3 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C4E2CA
oklch(88.4% 0.045 151.2)
-
Step 300
300
#9AD0A5
oklch(80.8% 0.082 150.5)
-
Step 400
400 (this color)
#66C27E
oklch(74% 0.132 150.5)
-
Step 500
500
#0CA54F
oklch(63.2% 0.169 150.5)
-
Step 600
600
#008B40
oklch(55.7% 0.152 150.4)
-
Step 700
700
#007535
oklch(49.2% 0.134 150.5)
-
Step 800
800
#00602A
oklch(42.8% 0.117 150.4)
-
Step 900
900
#005022
oklch(37.7% 0.103 150.5)
-
Step 950
950
#032F13
oklch(26.8% 0.069 150.7)
#66C27E 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) | #C3B57A | 0.112 |
| Deuteranopia (no green cones) | #B6AC82 | 0.109 |
| Tritanopia (no blue cones) | #54BFB1 | 0.073 |
| Achromatopsia (no color) | #AFAFAF | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66C27E
#66C27E
oklch(74% 0.132 150.5)
- #DA8BD2
#DA8BD2
oklch(74.1% 0.132 330.5)
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 #66C27E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.011
- Dark Mint #48C072 ΔE 0.030
- Greenblue #23C48B ΔE 0.037
- Faded Green #7BB274 ΔE 0.044
- Boring Green #63B365 ΔE 0.046
- Dark Mint Green #20C073 ΔE 0.046
- Green Blue #01C08D ΔE 0.047
- Algae Green #21C36F ΔE 0.047
Use #66C27E 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.