#63ABFC
Closest named color: Carolina Blue (#8AB8FE). oklch(72.9% 0.139 252.7), rgb(99, 171, 252).
Aa
Black text reads best on this color (8.76:1).
About this color
#63ABFC is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.139 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.057 away. Black text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 8.76:1 |
| White text | 2.39:1 |
Values
| HEX | #63ABFC |
| RGB | rgb(99, 171, 252) |
| HSL | hsl(212, 96%, 69%) |
| OKLCH | oklch(72.9% 0.139 252.7) |
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 #63ABFC | 2.39:1 | Fails | Lc -52.0 | Large or bold text, headings |
| Black text on #63ABFC | 8.76:1 | AAA | Lc 57.0 | Large or bold text, headings |
| #63ABFC text on white | 2.39:1 | Fails | Lc 47.0 | Large or bold text, headings |
| #63ABFC text on black | 8.76:1 | AAA | Lc -55.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCF9
oklch(88.5% 0.048 252.2)
-
Step 300
300
#98C4F8
oklch(80.8% 0.088 253)
-
Step 400
400 (this color)
#63ABFC
oklch(72.9% 0.139 252.7)
-
Step 500
500
#218AF0
oklch(63% 0.178 252.7)
-
Step 600
600
#0073D2
oklch(55.5% 0.17 252.7)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427C
oklch(37.8% 0.114 252.4)
-
Step 950
950
#062749
oklch(27.1% 0.073 252.8)
#63ABFC 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) | #89AFFF | 0.043 |
| Deuteranopia (no green cones) | #74A1FA | 0.029 |
| Tritanopia (no blue cones) | #00BEC8 | 0.114 |
| Achromatopsia (no color) | #A7A7A7 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63ABFC
#63ABFC
oklch(72.9% 0.139 252.7)
- #DC9830
#DC9830
oklch(73% 0.139 72.9)
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 #63ABFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.058
- Deep Sky Blue #00BFFF ΔE 0.061
- Periwinkle Blue #8F99FB ΔE 0.062
- Chefchaouen Blue #4895EF ΔE 0.067
- Perrywinkle #8F8CE7 ΔE 0.087
- Lightblue #7BC8F6 ΔE 0.088
- Vivid Sky Blue #4CC9F0 ΔE 0.088
Use #63ABFC 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.