#66A463
Closest named color: Dull Green (#74A662). oklch(66% 0.114 143.1), rgb(102, 164, 99).
Aa
Black text reads best on this color (7.05:1).
About this color
#66A463 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.114 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dull Green (#74A662), ΔE 0.017 away. Black text reads best on it, at 7.05:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dull Green (#74A662) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #66A463 |
| RGB | rgb(102, 164, 99) |
| HSL | hsl(117, 26%, 52%) |
| OKLCH | oklch(66% 0.114 143.1) |
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 #66A463 | 2.97:1 | Fails | Lc -61.6 | Content text, not long reading |
| Black text on #66A463 | 7.05:1 | AAA | Lc 47.8 | Large or bold text, headings |
| #66A463 text on white | 2.97:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #66A463 text on black | 7.05:1 | AAA | Lc -45.5 | 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 500.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CEDFCC
oklch(88.6% 0.031 142.3)
-
Step 300
300
#ACCAAA
oklch(80.8% 0.055 143.4)
-
Step 400
400
#7FAF7C
oklch(70.6% 0.089 143.1)
-
Step 500
500 (this color)
#66A463
oklch(66% 0.114 143.1)
-
Step 600
600
#428540
oklch(55.5% 0.123 143.2)
-
Step 700
700
#337132
oklch(49.2% 0.115 143.3)
-
Step 800
800
#2B5C2A
oklch(42.7% 0.095 143.3)
-
Step 900
900
#284B26
oklch(37.6% 0.073 142.8)
-
Step 950
950
#182C17
oklch(26.9% 0.046 143.1)
#66A463 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) | #A7995E | 0.086 |
| Deuteranopia (no green cones) | #9E9367 | 0.085 |
| Tritanopia (no blue cones) | #60A094 | 0.073 |
| Achromatopsia (no color) | #969696 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66A463
#66A463
oklch(66% 0.114 143.1)
- #B479BA
#B479BA
oklch(65.9% 0.115 323.5)
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 #66A463, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Green #74A662 ΔE 0.017
- Off Green #6BA353 ΔE 0.018
- Muted Green #5FA052 ΔE 0.024
- Algae #54AC68 ΔE 0.025
- Flat Green #699D4C ΔE 0.028
- Fern #63A950 ΔE 0.031
- Dusty Green #76A973 ΔE 0.031
- Moss #769958 ΔE 0.032
Use #66A463 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.