Sky Blue #87CEEB
Sky Blue is a light, moderately saturated teal or cyan with hex code #87CEEB and RGB rgb(135, 206, 235).
Aa
Black text reads best on this color (12.05:1).
About this color
#87CEEB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.082 and its hue 226°. Its hue sits on the cool side of the wheel. It is the named color Sky Blue. Black text reads best on it, at 12.05:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Sky Blue |
| Black text | 12.05:1 |
| White text | 1.74:1 |
Colors that go with Sky Blue
Matches found by rotating Sky Blue around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Sky Blue
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Sky Blue, closest first.
Similar named colors
The eight named colors closest to Sky Blue, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.022
- Lightblue #7BC8F6 ΔE 0.029
- Sky #82CAFC ΔE 0.030
- Light Cornflower Blue #98C1D9 ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.042
- Cloudy Blue #ACC2D9 ΔE 0.049
- Light Steel Blue #B0C4DE ΔE 0.049
- Vivid Sky Blue #4CC9F0 ΔE 0.051
More about Sky Blue
How to make Sky Blue
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 2 parts white
- 1 part blue
Recipe result: #92C6F0, a difference of ΔE 0.027 from Sky Blue. That is very close: most people will not see the difference.
Codes for Sky Blue in every format
| HEX | #87CEEB |
| RGB | rgb(135, 206, 235) |
| HSL | hsl(197, 71%, 73%) |
| OKLCH | oklch(81.5% 0.082 225.8) |
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 #87CEEB | 1.74:1 | Fails | Lc -35.5 | Non-text elements, placeholder text |
| Black text on #87CEEB | 12.05:1 | AAA | Lc 72.3 | Content text, not long reading |
| #87CEEB text on white | 1.74:1 | Fails | Lc 31.6 | Non-text elements, placeholder text |
| #87CEEB text on black | 12.05:1 | AAA | Lc -71.2 | Content text, not long reading |
Shades and tints of Sky Blue
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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#DAEEF6
oklch(93.7% 0.024 223.7)
-
Step 200
200
#BAE0F0
oklch(88.5% 0.046 225.3)
-
Step 300
300 (this color)
#87CEEB
oklch(81.5% 0.082 225.8)
-
Step 400
400
#18B0DE
oklch(70.6% 0.131 225.8)
-
Step 500
500
#0097C0
oklch(63% 0.12 225.7)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005871
oklch(42.8% 0.081 225.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
Sky Blue 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) | #BECBED | 0.064 |
| Deuteranopia (no green cones) | #AFBFEB | 0.057 |
| Tritanopia (no blue cones) | #5DD7D7 | 0.056 |
| Achromatopsia (no color) | #C4C4C4 | 0.082 |
Use Sky Blue 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.