#64BF51
Closest named color: Turtle Green (#75B84F). oklch(72.4% 0.172 140.3), rgb(100, 191, 81).
Aa
Black text reads best on this color (9.11:1).
About this color
#64BF51 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.172 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.023 away. Black text reads best on it, at 9.11:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 9.11:1 |
| White text | 2.30:1 |
Values
| HEX | #64BF51 |
| RGB | rgb(100, 191, 81) |
| HSL | hsl(110, 46%, 53%) |
| OKLCH | oklch(72.4% 0.172 140.3) |
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 #64BF51 | 2.30:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #64BF51 | 9.11:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #64BF51 text on white | 2.30:1 | Fails | Lc 45.2 | Large or bold text, headings |
| #64BF51 text on black | 9.11:1 | AAA | Lc -56.9 | 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
#DFEFDC
oklch(93.5% 0.03 140.8)
-
Step 200
200
#C5E3BE
oklch(88.4% 0.059 139.8)
-
Step 300
300
#9BD290
oklch(80.9% 0.107 140.4)
-
Step 400
400 (this color)
#64BF51
oklch(72.4% 0.172 140.3)
-
Step 500
500
#2EA500
oklch(63.2% 0.205 140.3)
-
Step 600
600
#268B00
oklch(55.7% 0.18 140.3)
-
Step 700
700
#1E7500
oklch(49.2% 0.159 140.3)
-
Step 800
800
#176000
oklch(42.8% 0.139 140.3)
-
Step 900
900
#125000
oklch(37.7% 0.122 140.2)
-
Step 950
950
#073000
oklch(27% 0.088 140.4)
#64BF51 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) | #C4B046 | 0.118 |
| Deuteranopia (no green cones) | #B8A859 | 0.118 |
| Tritanopia (no blue cones) | #5BB9A7 | 0.115 |
| Achromatopsia (no color) | #ABABAB | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64BF51
#64BF51
oklch(72.4% 0.172 140.3)
- #D57EE7
#D57EE7
oklch(72.4% 0.172 320.6)
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 #64BF51, closest first.
No curated palette has a color within ΔE 0.04 of #64BF51.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.023
- Leafy Green #51B73B ΔE 0.034
- Dark Mint #48C072 ΔE 0.037
- Algae Green #21C36F ΔE 0.041
- Dark Lime Green #7EBD01 ΔE 0.041
- Apple #6ECB3C ΔE 0.043
- Soft Green #6FC276 ΔE 0.043
- Dark Lime #84B701 ΔE 0.044
Use #64BF51 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.