#64CA91
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.2% 0.127 157), rgb(100, 202, 145).
Aa
Black text reads best on this color (10.39:1).
About this color
#64CA91 is a medium-light, moderately saturated green. In OKLCH its lightness is 76%, its chroma 0.127 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.033 away. Black text reads best on it, at 10.39:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.39:1 |
| White text | 2.01:1 |
Values
| HEX | #64CA91 |
| RGB | rgb(100, 202, 145) |
| HSL | hsl(146, 49%, 59%) |
| OKLCH | oklch(76.2% 0.127 157) |
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 #64CA91 | 2.01:1 | Fails | Lc -43.5 | Non-text elements, placeholder text |
| Black text on #64CA91 | 10.39:1 | AAA | Lc 64.9 | Content text, not long reading |
| #64CA91 text on white | 2.01:1 | Fails | Lc 39.0 | Non-text elements, placeholder text |
| #64CA91 text on black | 10.39:1 | AAA | Lc -63.4 | 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
#EDF9F1
oklch(97.1% 0.016 156.9)
-
Step 100
100
#D7F2E0
oklch(93.7% 0.037 156.4)
-
Step 200
200
#B3E8C7
oklch(88.5% 0.071 157.3)
-
Step 300
300 (this color)
#64CA91
oklch(76.2% 0.127 157)
-
Step 400
400
#00BF75
oklch(70.8% 0.168 157.1)
-
Step 500
500
#00A363
oklch(63% 0.15 157)
-
Step 600
600
#008A53
oklch(55.7% 0.133 157)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F37
oklch(42.7% 0.102 156.7)
-
Step 900
900
#004F2D
oklch(37.6% 0.09 156.8)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#64CA91 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) | #C9BD8E | 0.117 |
| Deuteranopia (no green cones) | #BAB294 | 0.114 |
| Tritanopia (no blue cones) | #48C9BB | 0.060 |
| Achromatopsia (no color) | #B6B6B6 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64CA91
#64CA91
oklch(76.2% 0.127 157)
- #E591CF
#E591CF
oklch(76.2% 0.128 337)
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 #64CA91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.033
- Soft Green #6FC276 ΔE 0.033
- Emerald #06D6A0 ΔE 0.043
- Greenblue #23C48B ΔE 0.043
- Dark Mint #48C072 ΔE 0.052
- Dark Sea Green #8FBC8F ΔE 0.053
- Green Blue #01C08D ΔE 0.055
- Seafoam Blue #78D1B6 ΔE 0.055
Use #64CA91 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.