#90CAEB
Closest named color: Sky Blue (#87CEEB). oklch(81.1% 0.076 233.9), rgb(144, 202, 235).
Aa
Black text reads best on this color (11.83:1).
About this color
#90CAEB is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.076 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.013 away. Black text reads best on it, at 11.83:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.83:1 |
| White text | 1.77:1 |
Values
| HEX | #90CAEB |
| RGB | rgb(144, 202, 235) |
| HSL | hsl(202, 69%, 74%) |
| OKLCH | oklch(81.1% 0.076 233.9) |
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 #90CAEB | 1.77:1 | Fails | Lc -36.6 | Non-text elements, placeholder text |
| Black text on #90CAEB | 11.83:1 | AAA | Lc 71.3 | Content text, not long reading |
| #90CAEB text on white | 1.77:1 | Fails | Lc 32.6 | Non-text elements, placeholder text |
| #90CAEB text on black | 11.83:1 | AAA | Lc -70.1 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BFDEF1
oklch(88.4% 0.042 234.9)
-
Step 300
300 (this color)
#90CAEB
oklch(81.1% 0.076 233.9)
-
Step 400
400
#44ACE0
oklch(70.6% 0.121 234.1)
-
Step 500
500
#0095CC
oklch(63.1% 0.132 233.7)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004865
oklch(37.8% 0.079 233.7)
-
Step 950
950
#002A3E
oklch(26.9% 0.057 235.2)
#90CAEB 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) | #BAC8ED | 0.050 |
| Deuteranopia (no green cones) | #AEBEEB | 0.045 |
| Tritanopia (no blue cones) | #6ED3D5 | 0.057 |
| Achromatopsia (no color) | #C2C2C2 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CAEB
#90CAEB
oklch(81.1% 0.076 233.9)
- #E9B593
#E9B593
oklch(81.2% 0.076 54.6)
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 #90CAEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.013
- Light Sky Blue #87CEFA ΔE 0.022
- Sky #82CAFC ΔE 0.027
- Lightblue #7BC8F6 ΔE 0.027
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Baby Blue #A2CFFE ΔE 0.036
- Cloudy Blue #ACC2D9 ΔE 0.039
- Light Steel Blue #B0C4DE ΔE 0.039
Use #90CAEB 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.