#90CDFF
Closest named color: Light Sky Blue (#87CEFA). oklch(82.5% 0.094 244), rgb(144, 205, 255).
Aa
Black text reads best on this color (12.36:1).
About this color
#90CDFF is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.094 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.013 away. Black text reads best on it, at 12.36:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.36:1 |
| White text | 1.69:1 |
Values
| HEX | #90CDFF |
| RGB | rgb(144, 205, 255) |
| HSL | hsl(207, 100%, 78%) |
| OKLCH | oklch(82.5% 0.094 244) |
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 #90CDFF | 1.69:1 | Fails | Lc -34.0 | Non-text elements, placeholder text |
| Black text on #90CDFF | 12.36:1 | AAA | Lc 73.6 | Content text, not long reading |
| #90CDFF text on white | 1.69:1 | Fails | Lc 30.2 | Non-text elements, placeholder text |
| #90CDFF text on black | 12.36:1 | AAA | Lc -72.5 | 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
#DBECFB
oklch(93.5% 0.027 244.7)
-
Step 200
200
#BDDEFA
oklch(88.6% 0.052 244)
-
Step 300
300 (this color)
#90CDFF
oklch(82.5% 0.094 244)
-
Step 400
400
#39A9F7
oklch(70.8% 0.151 243.8)
-
Step 500
500
#0090E0
oklch(63% 0.157 244.4)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#002944
oklch(27% 0.066 243.6)
#90CDFF 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) | #B8CDFF | 0.046 |
| Deuteranopia (no green cones) | #AAC1FE | 0.040 |
| Tritanopia (no blue cones) | #63D9DE | 0.078 |
| Achromatopsia (no color) | #C7C7C7 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CDFF
#90CDFF
oklch(82.5% 0.094 244)
- #F1B984
#F1B984
oklch(82.5% 0.094 64.3)
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 #90CDFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.013
- Sky #82CAFC ΔE 0.018
- Baby Blue #A2CFFE ΔE 0.021
- Lightblue #7BC8F6 ΔE 0.029
- Sky Blue #87CEEB ΔE 0.032
- Pastel Blue #A2BFFE ΔE 0.040
- Light Cornflower Blue #98C1D9 ΔE 0.054
- Light Steel Blue #B0C4DE ΔE 0.054
Use #90CDFF 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.