#66B60E
Closest named color: Frog Green (#58BC08). oklch(69.7% 0.197 134), rgb(102, 182, 14).
Aa
Black text reads best on this color (8.26:1).
About this color
#66B60E is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.197 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Frog Green (#58BC08), ΔE 0.020 away. Black text reads best on it, at 8.26:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.197) |
| Temperature | in between |
| Nearest name | Frog Green (#58BC08) |
| Black text | 8.26:1 |
| White text | 2.54:1 |
Values
| HEX | #66B60E |
| RGB | rgb(102, 182, 14) |
| HSL | hsl(89, 86%, 38%) |
| OKLCH | oklch(69.7% 0.197 134) |
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 #66B60E | 2.54:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #66B60E | 8.26:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #66B60E text on white | 2.54:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #66B60E text on black | 8.26:1 | AAA | Lc -52.5 | 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
#F1F8ED
oklch(97.1% 0.016 133.8)
-
Step 100
100
#E0F0D8
oklch(93.7% 0.036 135)
-
Step 200
200
#C7E4B6
oklch(88.6% 0.069 134)
-
Step 300
300
#A0D27F
oklch(80.9% 0.123 133.8)
-
Step 400
400 (this color)
#66B60E
oklch(69.7% 0.197 134)
-
Step 500
500
#579F00
oklch(63% 0.181 134)
-
Step 600
600
#488600
oklch(55.6% 0.16 134.1)
-
Step 700
700
#3C7100
oklch(49.2% 0.141 134)
-
Step 800
800
#305C00
oklch(42.6% 0.122 134)
-
Step 900
900
#274D00
oklch(37.7% 0.108 134.1)
-
Step 950
950
#152E00
oklch(27% 0.078 134)
#66B60E 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) | #BDA600 | 0.115 |
| Deuteranopia (no green cones) | #B3A02A | 0.115 |
| Tritanopia (no blue cones) | #65AE9A | 0.145 |
| Achromatopsia (no color) | #A2A2A2 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66B60E
#66B60E
oklch(69.7% 0.197 134)
- #C971F1
#C971F1
oklch(69.7% 0.197 314.2)
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 #66B60E, closest first.
No curated palette has a color within ΔE 0.04 of #66B60E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Frog Green #58BC08 ΔE 0.020
- Leafy Green #51B73B ΔE 0.024
- Dark Lime #84B701 ΔE 0.032
- Dark Lime Green #7EBD01 ΔE 0.034
- Grass #5CAC2D ΔE 0.036
- Leaf Green #5CA904 ΔE 0.039
- Leaf #71AA34 ΔE 0.044
- Turtle Green #75B84F ΔE 0.045
Use #66B60E 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.