#63D1AA
Closest named color: Medium Aquamarine (#66CDAA). oklch(78.5% 0.117 167.5), rgb(99, 209, 170).
Aa
Black text reads best on this color (11.23:1).
About this color
#63D1AA is a light, moderately saturated green. In OKLCH its lightness is 79%, its chroma 0.117 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.011 away. Black text reads best on it, at 11.23:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.23:1 |
| White text | 1.86:1 |
Values
| HEX | #63D1AA |
| RGB | rgb(99, 209, 170) |
| HSL | hsl(159, 54%, 60%) |
| OKLCH | oklch(78.5% 0.117 167.5) |
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 #63D1AA | 1.86:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #63D1AA | 11.23:1 | AAA | Lc 68.7 | Content text, not long reading |
| #63D1AA text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #63D1AA text on black | 11.23:1 | 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
#ECF9F3
oklch(97.1% 0.016 166.7)
-
Step 100
100
#D5F2E5
oklch(93.7% 0.035 166.8)
-
Step 200
200
#B0E8D1
oklch(88.6% 0.065 167.7)
-
Step 300
300 (this color)
#63D1AA
oklch(78.5% 0.117 167.5)
-
Step 400
400
#00BC8E
oklch(70.6% 0.144 167.5)
-
Step 500
500
#00A27A
oklch(63.2% 0.129 167.5)
-
Step 600
600
#008866
oklch(55.6% 0.113 167.6)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
Step 800
800
#005E45
oklch(42.8% 0.088 167.1)
-
Step 900
900
#004E39
oklch(37.6% 0.077 167.4)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#63D1AA 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) | #CDC5A8 | 0.118 |
| Deuteranopia (no green cones) | #BCB9AD | 0.113 |
| Tritanopia (no blue cones) | #35D2C6 | 0.042 |
| Achromatopsia (no color) | #BDBDBD | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D1AA
#63D1AA
oklch(78.5% 0.117 167.5)
- #F09AC7
#F09AC7
oklch(78.6% 0.116 347.4)
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 #63D1AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.011
- Seafoam Blue #78D1B6 ΔE 0.026
- Pale Teal #82CBB2 ΔE 0.035
- Emerald #06D6A0 ΔE 0.043
- Medium Turquoise #48D1CC ΔE 0.049
- Turquoise #40E0D0 ΔE 0.055
- Tiffany Blue #94D2BD ΔE 0.056
- Aqua Marine #2EE8BB ΔE 0.061
Use #63D1AA 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.