#63D0FD
Closest named color: Lightblue (#7BC8F6). oklch(81.1% 0.118 228), rgb(99, 208, 253).
Aa
Black text reads best on this color (11.97:1).
About this color
#63D0FD is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.118 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.026 away. Black text reads best on it, at 11.97:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 11.97:1 |
| White text | 1.75:1 |
Values
| HEX | #63D0FD |
| RGB | rgb(99, 208, 253) |
| HSL | hsl(198, 97%, 69%) |
| OKLCH | oklch(81.1% 0.118 228) |
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 #63D0FD | 1.75:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #63D0FD | 11.97:1 | AAA | Lc 72.0 | Content text, not long reading |
| #63D0FD text on white | 1.75:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #63D0FD text on black | 11.97:1 | AAA | Lc -70.9 | 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
#EBF8FE
oklch(97.1% 0.016 227)
-
Step 100
100
#D3EFFC
oklch(93.6% 0.034 227.4)
-
Step 200
200
#ACE2FC
oklch(88.4% 0.066 229.1)
-
Step 300
300 (this color)
#63D0FD
oklch(81.1% 0.118 228)
-
Step 400
400
#00B0E4
oklch(70.7% 0.138 228.2)
-
Step 500
500
#0097C4
oklch(63.2% 0.123 228.1)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#63D0FD 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) | #B8CDFF | 0.086 |
| Deuteranopia (no green cones) | #A3BCFC | 0.076 |
| Tritanopia (no blue cones) | #00DDDF | 0.074 |
| Achromatopsia (no color) | #C3C3C3 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D0FD
#63D0FD
oklch(81.1% 0.118 228)
- #FFAA7D
#FFAA7D
oklch(81.1% 0.117 48.4)
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 #63D0FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.026
- Sky #82CAFC ΔE 0.028
- Light Sky Blue #87CEFA ΔE 0.030
- Vivid Sky Blue #4CC9F0 ΔE 0.031
- Sky Blue #87CEEB ΔE 0.036
- Bright Sky Blue #02CCFE ΔE 0.040
- Aqua Blue #02D8E9 ΔE 0.055
- Baby Blue #A2CFFE ΔE 0.059
Use #63D0FD 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.