#63D4AF
Closest named color: Medium Aquamarine (#66CDAA). oklch(79.4% 0.117 169.2), rgb(99, 212, 175).
Aa
Black text reads best on this color (11.56:1).
About this color
#63D4AF is a light, moderately saturated green. In OKLCH its lightness is 79%, its chroma 0.117 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.019 away. Black text reads best on it, at 11.56:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.56:1 |
| White text | 1.81:1 |
Values
| HEX | #63D4AF |
| RGB | rgb(99, 212, 175) |
| HSL | hsl(160, 57%, 61%) |
| OKLCH | oklch(79.4% 0.117 169.2) |
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 #63D4AF | 1.81:1 | Fails | Lc -37.7 | Non-text elements, placeholder text |
| Black text on #63D4AF | 11.56:1 | AAA | Lc 70.3 | Content text, not long reading |
| #63D4AF text on white | 1.81:1 | Fails | Lc 33.6 | Non-text elements, placeholder text |
| #63D4AF text on black | 11.56:1 | AAA | Lc -69.0 | 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
#ECF9F4
oklch(97.1% 0.015 171.1)
-
Step 100
100
#D5F2E6
oklch(93.7% 0.034 168.8)
-
Step 200
200
#AFE8D2
oklch(88.6% 0.066 169.1)
-
Step 300
300 (this color)
#63D4AF
oklch(79.4% 0.117 169.2)
-
Step 400
400
#00BC92
oklch(70.7% 0.141 169.4)
-
Step 500
500
#00A17C
oklch(63% 0.126 169.1)
-
Step 600
600
#008868
oklch(55.7% 0.112 168.9)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#63D4AF 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) | #CFC8AD | 0.119 |
| Deuteranopia (no green cones) | #BEBBB1 | 0.115 |
| Tritanopia (no blue cones) | #30D5C9 | 0.041 |
| Achromatopsia (no color) | #C0C0C0 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D4AF
#63D4AF
oklch(79.4% 0.117 169.2)
- #F49CC7
#F49CC7
oklch(79.3% 0.117 349.4)
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 #63D4AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.019
- Seafoam Blue #78D1B6 ΔE 0.023
- Pale Teal #82CBB2 ΔE 0.036
- Emerald #06D6A0 ΔE 0.046
- Medium Turquoise #48D1CC ΔE 0.046
- Turquoise #40E0D0 ΔE 0.047
- Tiffany Blue #94D2BD ΔE 0.052
- Aqua Marine #2EE8BB ΔE 0.054
Use #63D4AF 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.