#63BEFA
Closest named color: Lightblue (#7BC8F6). oklch(77% 0.123 239.9), rgb(99, 190, 250).
Aa
Black text reads best on this color (10.27:1).
About this color
#63BEFA is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.123 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.038 away. Black text reads best on it, at 10.27:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 10.27:1 |
| White text | 2.04:1 |
Values
| HEX | #63BEFA |
| RGB | rgb(99, 190, 250) |
| HSL | hsl(204, 94%, 68%) |
| OKLCH | oklch(77% 0.123 239.9) |
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 #63BEFA | 2.04:1 | Fails | Lc -44.1 | Non-text elements, placeholder text |
| Black text on #63BEFA | 10.27:1 | AAA | Lc 64.4 | Content text, not long reading |
| #63BEFA text on white | 2.04:1 | Fails | Lc 39.6 | Non-text elements, placeholder text |
| #63BEFA text on black | 10.27:1 | AAA | Lc -62.8 | 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
#EDF7FF
oklch(97.1% 0.015 241.8)
-
Step 100
100
#D6EEFF
oklch(93.7% 0.034 238.7)
-
Step 200
200
#B4E0FF
oklch(88.6% 0.063 239.1)
-
Step 300
300 (this color)
#63BEFA
oklch(77% 0.123 239.9)
-
Step 400
400
#00ABFA
oklch(70.7% 0.162 240)
-
Step 500
500
#0093D7
oklch(63.2% 0.144 239.7)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#63BEFA 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) | #A3BEFD | 0.067 |
| Deuteranopia (no green cones) | #8EAFF9 | 0.054 |
| Tritanopia (no blue cones) | #00CDD2 | 0.091 |
| Achromatopsia (no color) | #B5B5B5 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BEFA
#63BEFA
oklch(77% 0.123 239.9)
- #EDA05F
#EDA05F
oklch(76.9% 0.123 59.6)
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 #63BEFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.038
- Vivid Sky Blue #4CC9F0 ΔE 0.039
- Deep Sky Blue #00BFFF ΔE 0.039
- Carolina Blue #8AB8FE ΔE 0.040
- Sky #82CAFC ΔE 0.046
- Bright Sky Blue #02CCFE ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.059
- Sky Blue #87CEEB ΔE 0.066
Use #63BEFA 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.