#64A640
Closest named color: Fern (#63A950). oklch(65.9% 0.152 136.1), rgb(100, 166, 64).
Aa
Black text reads best on this color (7.07:1).
About this color
#64A640 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.152 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.016 away. Black text reads best on it, at 7.07:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.07:1 |
| White text | 2.97:1 |
Values
| HEX | #64A640 |
| RGB | rgb(100, 166, 64) |
| HSL | hsl(99, 44%, 45%) |
| OKLCH | oklch(65.9% 0.152 136.1) |
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 #64A640 | 2.97:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #64A640 | 7.07:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #64A640 text on white | 2.97:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #64A640 text on black | 7.07:1 | AAA | Lc -45.7 | 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
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E4EDDF
oklch(93.5% 0.021 134.1)
-
Step 200
200
#CDE0C5
oklch(88.5% 0.042 136.3)
-
Step 300
300
#ABCC9C
oklch(80.8% 0.075 136)
-
Step 400
400
#7EB165
oklch(70.6% 0.118 136)
-
Step 500
500 (this color)
#64A640
oklch(65.9% 0.152 136.1)
-
Step 600
600
#408702
oklch(55.5% 0.165 136.1)
-
Step 700
700
#357200
oklch(49.1% 0.146 136)
-
Step 800
800
#2A5D00
oklch(42.6% 0.127 136)
-
Step 900
900
#274D0F
oklch(37.8% 0.099 136)
-
Step 950
950
#172D0B
oklch(27% 0.063 136.2)
#64A640 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) | #AC9935 | 0.096 |
| Deuteranopia (no green cones) | #A29448 | 0.094 |
| Tritanopia (no blue cones) | #62A090 | 0.108 |
| Achromatopsia (no color) | #969696 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A640
#64A640
oklch(65.9% 0.152 136.1)
- #B672D0
#B672D0
oklch(66% 0.152 316.1)
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 #64A640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.016
- Mid Green #50A747 ΔE 0.018
- Leaf #71AA34 ΔE 0.021
- Off Green #6BA353 ΔE 0.026
- Dark Pastel Green #56AE57 ΔE 0.027
- Grass #5CAC2D ΔE 0.027
- Muted Green #5FA052 ΔE 0.029
- Flat Green #699D4C ΔE 0.032
Use #64A640 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.