#63DAEA
Closest named color: Aqua Blue (#02D8E9). oklch(82.6% 0.109 207.2), rgb(99, 218, 234).
Aa
Black text reads best on this color (12.74:1).
About this color
#63DAEA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.109 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.036 away. Black text reads best on it, at 12.74:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.74:1 |
| White text | 1.64:1 |
Values
| HEX | #63DAEA |
| RGB | rgb(99, 218, 234) |
| HSL | hsl(187, 76%, 65%) |
| OKLCH | oklch(82.6% 0.109 207.2) |
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 #63DAEA | 1.64:1 | Fails | Lc -32.0 | Non-text elements, placeholder text |
| Black text on #63DAEA | 12.74:1 | AAA | Lc 75.4 | Fine for body text |
| #63DAEA text on white | 1.64:1 | Fails | Lc 28.4 | Dividers and decoration only |
| #63DAEA text on black | 12.74:1 | AAA | Lc -74.5 | 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
#EBF8FA
oklch(97% 0.014 207.9)
-
Step 100
100
#D3F0F5
oklch(93.6% 0.031 209.1)
-
Step 200
200
#ABE5ED
oklch(88.5% 0.06 206.7)
-
Step 300
300 (this color)
#63DAEA
oklch(82.6% 0.109 207.2)
-
Step 400
400
#00B5C7
oklch(70.7% 0.121 207.4)
-
Step 500
500
#009BAB
oklch(63% 0.108 207.7)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#63DAEA 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) | #CAD2EB | 0.106 |
| Deuteranopia (no green cones) | #B5C3EA | 0.097 |
| Tritanopia (no blue cones) | #00E2DF | 0.045 |
| Achromatopsia (no color) | #CACACA | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63DAEA
#63DAEA
oklch(82.6% 0.109 207.2)
- #FFAEA4
#FFAEA4
oklch(82.6% 0.097 27.1)
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 #63DAEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.036
- Sky Blue #87CEEB ΔE 0.042
- Medium Turquoise #48D1CC ΔE 0.051
- Turquoise #40E0D0 ΔE 0.051
- Light Sky Blue #87CEFA ΔE 0.054
- Robin's Egg #6DEDFD ΔE 0.054
- Vivid Sky Blue #4CC9F0 ΔE 0.055
- Lightblue #7BC8F6 ΔE 0.059
Use #63DAEA 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.