#63BEDF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(75.8% 0.099 224.2), rgb(99, 190, 223).
Aa
Black text reads best on this color (9.96:1).
About this color
#63BEDF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.099 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.033 away. Black text reads best on it, at 9.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.96:1 |
| White text | 2.10:1 |
Values
| HEX | #63BEDF |
| RGB | rgb(99, 190, 223) |
| HSL | hsl(196, 66%, 63%) |
| OKLCH | oklch(75.8% 0.099 224.2) |
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 #63BEDF | 2.10:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #63BEDF | 9.96:1 | AAA | Lc 62.8 | Content text, not long reading |
| #63BEDF text on white | 2.10:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #63BEDF text on black | 9.96:1 | AAA | Lc -61.2 | 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 400.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEEDF3
oklch(93.7% 0.018 223.6)
-
Step 200
200
#C2DFEA
oklch(88.6% 0.034 222.7)
-
Step 300
300
#95CADE
oklch(80.9% 0.062 223.2)
-
Step 400
400 (this color)
#63BEDF
oklch(75.8% 0.099 224.2)
-
Step 500
500
#0098BE
oklch(63.1% 0.118 223.7)
-
Step 600
600
#0080A1
oklch(55.7% 0.105 224.1)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#63BEDF 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) | #ABBAE1 | 0.077 |
| Deuteranopia (no green cones) | #99ADDF | 0.068 |
| Tritanopia (no blue cones) | #00C8C9 | 0.064 |
| Achromatopsia (no color) | #B3B3B3 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BEDF
#63BEDF
oklch(75.8% 0.099 224.2)
- #E69C7C
#E69C7C
oklch(75.8% 0.1 44.2)
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 #63BEDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.055
- Bright Sky Blue #02CCFE ΔE 0.055
- Deep Sky Blue #00BFFF ΔE 0.057
- Light Grey Blue #9DBCD4 ΔE 0.059
- Sky #82CAFC ΔE 0.059
- Sky Blue #87CEEB ΔE 0.059
Use #63BEDF 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.