#64D391
Closest named color: Emerald (#06D6A0). oklch(78.4% 0.14 155.2), rgb(100, 211, 145).
Aa
Black text reads best on this color (11.26:1).
About this color
#64D391 is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.140 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.036 away. Black text reads best on it, at 11.26:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.26:1 |
| White text | 1.86:1 |
Values
| HEX | #64D391 |
| RGB | rgb(100, 211, 145) |
| HSL | hsl(144, 56%, 61%) |
| OKLCH | oklch(78.4% 0.14 155.2) |
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 #64D391 | 1.86:1 | Fails | Lc -39.1 | Non-text elements, placeholder text |
| Black text on #64D391 | 11.26:1 | AAA | Lc 68.9 | Content text, not long reading |
| #64D391 text on white | 1.86:1 | Fails | Lc 34.9 | Non-text elements, placeholder text |
| #64D391 text on black | 11.26:1 | AAA | Lc -67.6 | 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
#ECF9F0
oklch(97% 0.018 155.8)
-
Step 100
100
#D6F2DE
oklch(93.5% 0.04 154.5)
-
Step 200
200
#B0E9C3
oklch(88.5% 0.078 155.3)
-
Step 300
300 (this color)
#64D391
oklch(78.4% 0.14 155.2)
-
Step 400
400
#00BF6F
oklch(70.7% 0.174 155.3)
-
Step 500
500
#00A45E
oklch(63.1% 0.156 155.1)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007441
oklch(49.1% 0.121 155.2)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#64D391 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) | #D2C48D | 0.126 |
| Deuteranopia (no green cones) | #C3B995 | 0.124 |
| Tritanopia (no blue cones) | #45D1C2 | 0.069 |
| Achromatopsia (no color) | #BEBEBE | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64D391
#64D391
oklch(78.4% 0.14 155.2)
- #F095DC
#F095DC
oklch(78.5% 0.14 335.3)
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 #64D391, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.036
- Medium Aquamarine #66CDAA ΔE 0.043
- Aqua Green #12E193 ΔE 0.047
- Soft Green #6FC276 ΔE 0.048
- Seaweed #18D17B ΔE 0.050
- Seafoam Blue #78D1B6 ΔE 0.058
- Greenblue #23C48B ΔE 0.060
- Pale Teal #82CBB2 ΔE 0.065
Use #64D391 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.