#64B243
Closest named color: Leaf (#71AA34). oklch(68.9% 0.166 137.6), rgb(100, 178, 67).
Aa
Black text reads best on this color (7.99:1).
About this color
#64B243 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.166 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leaf (#71AA34), ΔE 0.023 away. Black text reads best on it, at 7.99:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Leaf (#71AA34) |
| Black text | 7.99:1 |
| White text | 2.62:1 |
Values
| HEX | #64B243 |
| RGB | rgb(100, 178, 67) |
| HSL | hsl(102, 45%, 48%) |
| OKLCH | oklch(68.9% 0.166 137.6) |
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 #64B243 | 2.62:1 | Fails | Lc -56.2 | Large or bold text, headings |
| Black text on #64B243 | 7.99:1 | AAA | Lc 53.0 | Large or bold text, headings |
| #64B243 text on white | 2.62:1 | Fails | Lc 51.0 | Large or bold text, headings |
| #64B243 text on black | 7.99:1 | AAA | Lc -50.9 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E1EFDC
oklch(93.6% 0.029 137.4)
-
Step 200
200
#C7E3BE
oklch(88.5% 0.058 138.1)
-
Step 300
300
#A0D18F
oklch(81% 0.104 137.8)
-
Step 400
400 (this color)
#64B243
oklch(68.9% 0.166 137.6)
-
Step 500
500
#44A200
oklch(63% 0.193 137.6)
-
Step 600
600
#388900
oklch(55.7% 0.171 137.7)
-
Step 700
700
#2E7300
oklch(49.1% 0.151 137.7)
-
Step 800
800
#255E00
oklch(42.7% 0.13 137.5)
-
Step 900
900
#1D4F00
oklch(37.8% 0.116 137.7)
-
Step 950
950
#0F2F00
oklch(27% 0.083 137.4)
#64B243 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) | #B8A436 | 0.107 |
| Deuteranopia (no green cones) | #AD9D4C | 0.108 |
| Tritanopia (no blue cones) | #60AC9B | 0.116 |
| Achromatopsia (no color) | #A0A0A0 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B243
#64B243
oklch(68.9% 0.166 137.6)
- #C476DD
#C476DD
oklch(68.8% 0.166 317.5)
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 #64B243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leaf #71AA34 ΔE 0.023
- Leafy Green #51B73B ΔE 0.024
- Grass #5CAC2D ΔE 0.024
- Dark Pastel Green #56AE57 ΔE 0.027
- Turtle Green #75B84F ΔE 0.028
- Fern #63A950 ΔE 0.032
- Boring Green #63B365 ΔE 0.035
- Medium Green #39AD48 ΔE 0.038
Use #64B243 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.