#63DBF7
Closest named color: Sky Blue (#87CEEB). oklch(83.3% 0.114 215.5), rgb(99, 219, 247).
Aa
Black text reads best on this color (13.00:1).
About this color
#63DBF7 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.114 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.041 away. Black text reads best on it, at 13.00:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.00:1 |
| White text | 1.61:1 |
Values
| HEX | #63DBF7 |
| RGB | rgb(99, 219, 247) |
| HSL | hsl(191, 90%, 68%) |
| OKLCH | oklch(83.3% 0.114 215.5) |
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 #63DBF7 | 1.61:1 | Fails | Lc -30.8 | Non-text elements, placeholder text |
| Black text on #63DBF7 | 13.00:1 | AAA | Lc 76.5 | Fine for body text |
| #63DBF7 text on white | 1.61:1 | Fails | Lc 27.3 | Dividers and decoration only |
| #63DBF7 text on black | 13.00:1 | AAA | Lc -75.7 | 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
#EBF8FC
oklch(97.1% 0.015 218)
-
Step 100
100
#D2F0F8
oklch(93.6% 0.033 215.6)
-
Step 200
200
#AAE4F4
oklch(88.5% 0.063 216.6)
-
Step 300
300 (this color)
#63DBF7
oklch(83.3% 0.114 215.5)
-
Step 400
400
#00B3D2
oklch(70.6% 0.125 216)
-
Step 500
500
#009AB4
oklch(63.2% 0.112 215.3)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#63DBF7 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) | #C7D5F9 | 0.101 |
| Deuteranopia (no green cones) | #B2C5F7 | 0.091 |
| Tritanopia (no blue cones) | #00E5E4 | 0.055 |
| Achromatopsia (no color) | #CBCBCB | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63DBF7
#63DBF7
oklch(83.3% 0.114 215.5)
- #FFB39F
#FFB39F
oklch(83.4% 0.094 35.3)
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 #63DBF7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.041
- Aqua Blue #02D8E9 ΔE 0.044
- Light Sky Blue #87CEFA ΔE 0.045
- Robin's Egg #6DEDFD ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.052
- Sky #82CAFC ΔE 0.052
- Vivid Sky Blue #4CC9F0 ΔE 0.053
- Bright Sky Blue #02CCFE ΔE 0.062
Use #63DBF7 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.