#64D388
Closest named color: Emerald (#06D6A0). oklch(78.3% 0.148 152.1), rgb(100, 211, 136).
Aa
Black text reads best on this color (11.21:1).
About this color
#64D388 is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.148 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.041 away. Black text reads best on it, at 11.21:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.21:1 |
| White text | 1.87:1 |
Values
| HEX | #64D388 |
| RGB | rgb(100, 211, 136) |
| HSL | hsl(139, 56%, 61%) |
| OKLCH | oklch(78.3% 0.148 152.1) |
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 #64D388 | 1.87:1 | Fails | Lc -39.4 | Non-text elements, placeholder text |
| Black text on #64D388 | 11.21:1 | AAA | Lc 68.7 | Content text, not long reading |
| #64D388 text on white | 1.87:1 | Fails | Lc 35.2 | Non-text elements, placeholder text |
| #64D388 text on black | 11.21:1 | AAA | Lc -67.4 | Content text, not long reading |
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 300.
-
Step 50
50
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D6F3DC
oklch(93.7% 0.043 151.5)
-
Step 200
200
#B1E9BF
oklch(88.4% 0.081 152.2)
-
Step 300
300 (this color)
#64D388
oklch(78.3% 0.148 152.1)
-
Step 400
400
#00C063
oklch(70.8% 0.186 152.1)
-
Step 500
500
#00A554
oklch(63.2% 0.166 152.1)
-
Step 600
600
#008A45
oklch(55.5% 0.146 152)
-
Step 700
700
#007439
oklch(49% 0.129 152)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#64D388 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) | #D3C483 | 0.127 |
| Deuteranopia (no green cones) | #C4B98D | 0.125 |
| Tritanopia (no blue cones) | #49D0C0 | 0.079 |
| Achromatopsia (no color) | #BDBDBD | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64D388
#64D388
oklch(78.3% 0.148 152.1)
- #EF93E2
#EF93E2
oklch(78.3% 0.148 332.1)
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 #64D388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.041
- Seaweed #18D17B ΔE 0.043
- Aqua Green #12E193 ΔE 0.044
- Soft Green #6FC276 ΔE 0.045
- Medium Aquamarine #66CDAA ΔE 0.054
- Weird Green #3AE57F ΔE 0.058
- Greenblue #23C48B ΔE 0.061
- Dark Mint #48C072 ΔE 0.062
Use #64D388 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.