#63E4CA
Closest named color: Turquoise (#40E0D0). oklch(83.9% 0.121 177.8), rgb(99, 228, 202).
Aa
Black text reads best on this color (13.48:1).
About this color
#63E4CA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.121 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.025 away. Black text reads best on it, at 13.48:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.48:1 |
| White text | 1.55:1 |
Values
| HEX | #63E4CA |
| RGB | rgb(99, 228, 202) |
| HSL | hsl(168, 70%, 64%) |
| OKLCH | oklch(83.9% 0.121 177.8) |
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 #63E4CA | 1.55:1 | Fails | Lc -28.6 | Dividers and decoration only |
| Black text on #63E4CA | 13.48:1 | AAA | Lc 78.5 | Fine for body text |
| #63E4CA text on white | 1.55:1 | Fails | Lc 25.3 | Dividers and decoration only |
| #63E4CA text on black | 13.48:1 | AAA | Lc -77.8 | 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
#EBF9F5
oklch(97.1% 0.016 177.1)
-
Step 100
100
#D2F2EA
oklch(93.6% 0.035 178.8)
-
Step 200
200
#A9E8D9
oklch(88.4% 0.067 178.3)
-
Step 300
300 (this color)
#63E4CA
oklch(83.9% 0.121 177.8)
-
Step 400
400
#00BAA0
oklch(70.6% 0.13 177.9)
-
Step 500
500
#00A089
oklch(63.1% 0.116 177.6)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#63E4CA 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) | #DCD7C9 | 0.128 |
| Deuteranopia (no green cones) | #C8C9CC | 0.121 |
| Tritanopia (no blue cones) | #00E7DC | 0.035 |
| Achromatopsia (no color) | #CFCFCF | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63E4CA
#63E4CA
oklch(83.9% 0.121 177.8)
- #FFB0CA
#FFB0CA
oklch(84% 0.097 358)
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 #63E4CA, closest first.
No curated palette has a color within ΔE 0.04 of #63E4CA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.025
- Light Teal #90E4C1 ΔE 0.037
- Aqua Marine #2EE8BB ΔE 0.038
- Seafoam Blue #78D1B6 ΔE 0.050
- Light Turquoise #7EF4CC ΔE 0.051
- Tiffany Blue #94D2BD ΔE 0.057
- Hospital Green #9BE5AA ΔE 0.059
- Medium Turquoise #48D1CC ΔE 0.060
Use #63E4CA 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.