#66BD67
Closest named color: Dark Mint (#48C072). oklch(72.3% 0.148 144.1), rgb(102, 189, 103).
Aa
Black text reads best on this color (9.03:1).
About this color
#66BD67 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.148 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.022 away. Black text reads best on it, at 9.03:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.03:1 |
| White text | 2.32:1 |
Values
| HEX | #66BD67 |
| RGB | rgb(102, 189, 103) |
| HSL | hsl(121, 40%, 57%) |
| OKLCH | oklch(72.3% 0.148 144.1) |
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 #66BD67 | 2.32:1 | Fails | Lc -50.5 | Large or bold text, headings |
| Black text on #66BD67 | 9.03:1 | AAA | Lc 58.4 | Large or bold text, headings |
| #66BD67 text on white | 2.32:1 | Fails | Lc 45.6 | Large or bold text, headings |
| #66BD67 text on black | 9.03:1 | AAA | Lc -56.5 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C5E3C4
oklch(88.6% 0.053 144.3)
-
Step 300
300
#9CD19B
oklch(81% 0.093 144.2)
-
Step 400
400 (this color)
#66BD67
oklch(72.3% 0.148 144.1)
-
Step 500
500
#24A531
oklch(63.2% 0.189 144.1)
-
Step 600
600
#008C1B
oklch(55.6% 0.18 144)
-
Step 700
700
#007616
oklch(49.1% 0.159 144.1)
-
Step 800
800
#006110
oklch(42.8% 0.138 144.1)
-
Step 900
900
#00510C
oklch(37.8% 0.122 144.2)
-
Step 950
950
#073009
oklch(27.2% 0.079 143.7)
#66BD67 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) | #C0AF60 | 0.111 |
| Deuteranopia (no green cones) | #B4A76D | 0.110 |
| Tritanopia (no blue cones) | #5BB9A8 | 0.091 |
| Achromatopsia (no color) | #AAAAAA | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BD67
#66BD67
oklch(72.3% 0.148 144.1)
- #D283D9
#D283D9
oklch(72.2% 0.147 324)
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 #66BD67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.022
- Soft Green #6FC276 ΔE 0.023
- Turtle Green #75B84F ΔE 0.025
- Boring Green #63B365 ΔE 0.029
- Dark Mint Green #20C073 ΔE 0.038
- Algae Green #21C36F ΔE 0.038
- Cool Green #33B864 ΔE 0.041
- Faded Green #7BB274 ΔE 0.045
Use #66BD67 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.