#64D381
Closest named color: Seaweed (#18D17B). oklch(78.1% 0.155 150), rgb(100, 211, 129).
Aa
Black text reads best on this color (11.17:1).
About this color
#64D381 is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.155 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.039 away. Black text reads best on it, at 11.17:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 11.17:1 |
| White text | 1.87:1 |
Values
| HEX | #64D381 |
| RGB | rgb(100, 211, 129) |
| HSL | hsl(136, 56%, 61%) |
| OKLCH | oklch(78.1% 0.155 150) |
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 #64D381 | 1.87:1 | Fails | Lc -39.6 | Non-text elements, placeholder text |
| Black text on #64D381 | 11.17:1 | AAA | Lc 68.5 | Content text, not long reading |
| #64D381 text on white | 1.87:1 | Fails | Lc 35.3 | Non-text elements, placeholder text |
| #64D381 text on black | 11.17:1 | AAA | Lc -67.2 | 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
#ECFAEE
oklch(97.1% 0.022 149.7)
-
Step 100
100
#D6F3DA
oklch(93.6% 0.045 149.2)
-
Step 200
200
#B1EABB
oklch(88.6% 0.087 149.7)
-
Step 300
300 (this color)
#64D381
oklch(78.1% 0.155 150)
-
Step 400
400
#00C059
oklch(70.6% 0.194 150)
-
Step 500
500
#00A54B
oklch(63.1% 0.174 149.9)
-
Step 600
600
#008B3E
oklch(55.6% 0.154 149.9)
-
Step 700
700
#007533
oklch(49.1% 0.136 149.9)
-
Step 800
800
#006029
oklch(42.7% 0.118 150)
-
Step 900
900
#005021
oklch(37.7% 0.104 150)
-
Step 950
950
#003011
oklch(27% 0.074 150)
#64D381 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) | #D4C37B | 0.129 |
| Deuteranopia (no green cones) | #C5B986 | 0.127 |
| Tritanopia (no blue cones) | #4BD0BE | 0.084 |
| Achromatopsia (no color) | #BDBDBD | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64D381
#64D381
oklch(78.1% 0.155 150)
- #EE91E7
#EE91E7
oklch(78.1% 0.155 329.7)
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 #64D381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.039
- Aqua Green #12E193 ΔE 0.044
- Soft Green #6FC276 ΔE 0.045
- Emerald #06D6A0 ΔE 0.046
- Weird Green #3AE57F ΔE 0.054
- Fresh Green #69D84F ΔE 0.057
- Dark Mint #48C072 ΔE 0.060
- Medium Aquamarine #66CDAA ΔE 0.062
Use #64D381 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.