#63DCE8
Closest named color: Aqua Blue (#02D8E9). oklch(83% 0.109 204.2), rgb(99, 220, 232).
Aa
Black text reads best on this color (12.93:1).
About this color
#63DCE8 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.109 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.038 away. Black text reads best on it, at 12.93:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.93:1 |
| White text | 1.62:1 |
Values
| HEX | #63DCE8 |
| RGB | rgb(99, 220, 232) |
| HSL | hsl(185, 74%, 65%) |
| OKLCH | oklch(83% 0.109 204.2) |
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 #63DCE8 | 1.62:1 | Fails | Lc -31.2 | Non-text elements, placeholder text |
| Black text on #63DCE8 | 12.93:1 | AAA | Lc 76.2 | Fine for body text |
| #63DCE8 text on white | 1.62:1 | Fails | Lc 27.6 | Dividers and decoration only |
| #63DCE8 text on black | 12.93:1 | AAA | Lc -75.3 | 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
#EBF9FA
oklch(97.2% 0.015 202.1)
-
Step 100
100
#D3F0F4
oklch(93.5% 0.031 206.7)
-
Step 200
200
#AAE5EC
oklch(88.4% 0.061 205.3)
-
Step 300
300 (this color)
#63DCE8
oklch(83% 0.109 204.2)
-
Step 400
400
#00B6C3
oklch(70.8% 0.121 203.9)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#63DCE8 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) | #CCD4E9 | 0.108 |
| Deuteranopia (no green cones) | #B8C4E9 | 0.101 |
| Tritanopia (no blue cones) | #00E4DF | 0.043 |
| Achromatopsia (no color) | #CBCBCB | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63DCE8
#63DCE8
oklch(83% 0.109 204.2)
- #FFB0A9
#FFB0A9
oklch(83.1% 0.094 24.9)
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 #63DCE8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.038
- Turquoise #40E0D0 ΔE 0.046
- Sky Blue #87CEEB ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.050
- Medium Turquoise #48D1CC ΔE 0.050
- Light Sky Blue #87CEFA ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Celeste #A8DADC ΔE 0.062
Use #63DCE8 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.