#90D3FF
Closest named color: Light Sky Blue (#87CEFA). oklch(83.8% 0.092 238.1), rgb(144, 211, 255).
Aa
Black text reads best on this color (12.94:1).
About this color
#90D3FF is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.092 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.018 away. Black text reads best on it, at 12.94:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.94:1 |
| White text | 1.62:1 |
Values
| HEX | #90D3FF |
| RGB | rgb(144, 211, 255) |
| HSL | hsl(204, 100%, 78%) |
| OKLCH | oklch(83.8% 0.092 238.1) |
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 #90D3FF | 1.62:1 | Fails | Lc -31.3 | Non-text elements, placeholder text |
| Black text on #90D3FF | 12.94:1 | AAA | Lc 76.1 | Fine for body text |
| #90D3FF text on white | 1.62:1 | Fails | Lc 27.7 | Dividers and decoration only |
| #90D3FF text on black | 12.94:1 | AAA | Lc -75.2 | 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
#EEF7FD
oklch(97.1% 0.013 236.6)
-
Step 100
100
#DAEDFA
oklch(93.6% 0.027 237.6)
-
Step 200
200
#BBDFF7
oklch(88.5% 0.05 237.3)
-
Step 300
300 (this color)
#90D3FF
oklch(83.8% 0.092 238.1)
-
Step 400
400
#27ACF1
oklch(70.8% 0.147 238.1)
-
Step 500
500
#0093D4
oklch(63% 0.141 238.5)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#90D3FF 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) | #BFD2FF | 0.054 |
| Deuteranopia (no green cones) | #B0C6FE | 0.046 |
| Tritanopia (no blue cones) | #62DEE1 | 0.072 |
| Achromatopsia (no color) | #CBCBCB | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D3FF
#90D3FF
oklch(83.8% 0.092 238.1)
- #F8BB8E
#F8BB8E
oklch(83.7% 0.092 57.5)
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 #90D3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.018
- Baby Blue #A2CFFE ΔE 0.021
- Sky #82CAFC ΔE 0.029
- Sky Blue #87CEEB ΔE 0.031
- Lightblue #7BC8F6 ΔE 0.039
- Light Blue #ADD8E6 ΔE 0.051
- Pastel Blue #A2BFFE ΔE 0.054
- Light Blue Grey #B7C9E2 ΔE 0.056
Use #90D3FF 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.