#90D0FB
Closest named color: Light Sky Blue (#87CEFA). oklch(83% 0.089 238.6), rgb(144, 208, 251).
Aa
Black text reads best on this color (12.60:1).
About this color
#90D0FB is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.089 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.011 away. Black text reads best on it, at 12.60:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.60:1 |
| White text | 1.66:1 |
Values
| HEX | #90D0FB |
| RGB | rgb(144, 208, 251) |
| HSL | hsl(204, 93%, 77%) |
| OKLCH | oklch(83% 0.089 238.6) |
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 #90D0FB | 1.66:1 | Fails | Lc -32.9 | Non-text elements, placeholder text |
| Black text on #90D0FB | 12.60:1 | AAA | Lc 74.6 | Content text, not long reading |
| #90D0FB text on white | 1.66:1 | Fails | Lc 29.2 | Dividers and decoration only |
| #90D0FB text on black | 12.60:1 | AAA | Lc -73.6 | 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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DBEDFA
oklch(93.7% 0.026 239.1)
-
Step 200
200
#BCDFF7
oklch(88.6% 0.05 238.1)
-
Step 300
300 (this color)
#90D0FB
oklch(83% 0.089 238.6)
-
Step 400
400
#32ABEF
oklch(70.7% 0.143 239)
-
Step 500
500
#0093D5
oklch(63.1% 0.142 238.9)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#90D0FB 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) | #BDCFFD | 0.052 |
| Deuteranopia (no green cones) | #AEC3FA | 0.045 |
| Tritanopia (no blue cones) | #65DBDE | 0.070 |
| Achromatopsia (no color) | #C8C8C8 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D0FB
#90D0FB
oklch(83% 0.089 238.6)
- #F3BA8D
#F3BA8D
oklch(83% 0.089 59.4)
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 #90D0FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.011
- Baby Blue #A2CFFE ΔE 0.021
- Sky #82CAFC ΔE 0.023
- Sky Blue #87CEEB ΔE 0.025
- Lightblue #7BC8F6 ΔE 0.032
- Pastel Blue #A2BFFE ΔE 0.049
- Light Steel Blue #B0C4DE ΔE 0.052
- Light Blue Grey #B7C9E2 ΔE 0.052
Use #90D0FB 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.