#63E4D3
Closest named color: Turquoise (#40E0D0). oklch(84.2% 0.117 183.5), rgb(99, 228, 211).
Aa
Black text reads best on this color (13.56:1).
About this color
#63E4D3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.117 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.024 away. Black text reads best on it, at 13.56:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.56:1 |
| White text | 1.54:1 |
Values
| HEX | #63E4D3 |
| RGB | rgb(99, 228, 211) |
| HSL | hsl(172, 70%, 64%) |
| OKLCH | oklch(84.2% 0.117 183.5) |
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 #63E4D3 | 1.54:1 | Fails | Lc -28.2 | Dividers and decoration only |
| Black text on #63E4D3 | 13.56:1 | AAA | Lc 78.8 | Fine for body text |
| #63E4D3 text on white | 1.54:1 | Fails | Lc 24.9 | Dividers and decoration only |
| #63E4D3 text on black | 13.56:1 | AAA | Lc -78.2 | Fine for body text |
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
#EBF9F6
oklch(97.1% 0.015 181.8)
-
Step 100
100
#D2F2EC
oklch(93.6% 0.034 183)
-
Step 200
200
#A9E8DD
oklch(88.5% 0.065 182.8)
-
Step 300
300 (this color)
#63E4D3
oklch(84.2% 0.117 183.5)
-
Step 400
400
#00B9A9
oklch(70.6% 0.125 184)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#63E4D3 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) | #DAD8D2 | 0.124 |
| Deuteranopia (no green cones) | #C6CAD5 | 0.117 |
| Tritanopia (no blue cones) | #00E8DF | 0.032 |
| Achromatopsia (no color) | #D0D0D0 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63E4D3
#63E4D3
oklch(84.2% 0.117 183.5)
- #FFB2C5
#FFB2C5
oklch(84.2% 0.092 3.1)
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 #63E4D3, closest first.
No curated palette has a color within ΔE 0.04 of #63E4D3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.024
- Light Teal #90E4C1 ΔE 0.041
- Aqua Marine #2EE8BB ΔE 0.049
- Seafoam Blue #78D1B6 ΔE 0.054
- Light Turquoise #7EF4CC ΔE 0.055
- Tiffany Blue #94D2BD ΔE 0.057
- Bright Aqua #0BF9EA ΔE 0.057
- Medium Turquoise #48D1CC ΔE 0.058
Use #63E4D3 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.