#90CBFF
Closest named color: Light Sky Blue (#87CEFA). oklch(82.1% 0.096 245.9), rgb(144, 203, 255).
Aa
Black text reads best on this color (12.17:1).
About this color
#90CBFF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.096 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.015 away. Black text reads best on it, at 12.17:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.17:1 |
| White text | 1.72:1 |
Values
| HEX | #90CBFF |
| RGB | rgb(144, 203, 255) |
| HSL | hsl(208, 100%, 78%) |
| OKLCH | oklch(82.1% 0.096 245.9) |
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 #90CBFF | 1.72:1 | Fails | Lc -34.9 | Non-text elements, placeholder text |
| Black text on #90CBFF | 12.17:1 | AAA | Lc 72.8 | Content text, not long reading |
| #90CBFF text on white | 1.72:1 | Fails | Lc 31.1 | Non-text elements, placeholder text |
| #90CBFF text on black | 12.17:1 | AAA | Lc -71.7 | 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
#EFF7FE
oklch(97.2% 0.013 244.3)
-
Step 100
100
#DBECFC
oklch(93.5% 0.028 246.5)
-
Step 200
200
#BDDDFB
oklch(88.4% 0.054 246.7)
-
Step 300
300 (this color)
#90CBFF
oklch(82.1% 0.096 245.9)
-
Step 400
400
#3EA8F9
oklch(70.8% 0.152 245.7)
-
Step 500
500
#008FE4
oklch(63% 0.162 246)
-
Step 600
600
#0078C1
oklch(55.5% 0.143 246.2)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#005387
oklch(42.8% 0.11 245.8)
-
Step 900
900
#004571
oklch(37.8% 0.096 245.5)
-
Step 950
950
#002846
oklch(26.9% 0.07 246.6)
#90CBFF 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) | #B6CCFF | 0.044 |
| Deuteranopia (no green cones) | #A7C0FE | 0.036 |
| Tritanopia (no blue cones) | #63D7DC | 0.080 |
| Achromatopsia (no color) | #C5C5C5 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CBFF
#90CBFF
oklch(82.1% 0.096 245.9)
- #EFB881
#EFB881
oklch(82% 0.095 65.8)
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 #90CBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.015
- Sky #82CAFC ΔE 0.016
- Baby Blue #A2CFFE ΔE 0.024
- Lightblue #7BC8F6 ΔE 0.027
- Sky Blue #87CEEB ΔE 0.034
- Pastel Blue #A2BFFE ΔE 0.035
- Carolina Blue #8AB8FE ΔE 0.052
- Light Cornflower Blue #98C1D9 ΔE 0.053
Use #90CBFF 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.