#90B5EF
Closest named color: Carolina Blue (#8AB8FE). oklch(76.8% 0.093 259.2), rgb(144, 181, 239).
Aa
Black text reads best on this color (10.04:1).
About this color
#90B5EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.093 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.021 away. Black text reads best on it, at 10.04:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.04:1 |
| White text | 2.09:1 |
Values
| HEX | #90B5EF |
| RGB | rgb(144, 181, 239) |
| HSL | hsl(217, 75%, 75%) |
| OKLCH | oklch(76.8% 0.093 259.2) |
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 #90B5EF | 2.09:1 | Fails | Lc -45.4 | Large or bold text, headings |
| Black text on #90B5EF | 10.04:1 | AAA | Lc 63.1 | Content text, not long reading |
| #90B5EF text on white | 2.09:1 | Fails | Lc 40.8 | Non-text elements, placeholder text |
| #90B5EF text on black | 10.04:1 | AAA | Lc -61.4 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFC
oklch(88.6% 0.051 258.4)
-
Step 300
300 (this color)
#90B5EF
oklch(76.8% 0.093 259.2)
-
Step 400
400
#66A0FC
oklch(70.7% 0.149 259.3)
-
Step 500
500
#3A85FA
oklch(63.2% 0.19 259.2)
-
Step 600
600
#116BE9
oklch(55.7% 0.206 259.1)
-
Step 700
700
#0058CB
oklch(49.1% 0.193 259.2)
-
Step 800
800
#0849A4
oklch(42.8% 0.159 259.2)
-
Step 900
900
#123E82
oklch(37.7% 0.124 259.3)
-
Step 950
950
#0C254C
oklch(27% 0.079 259.2)
#90B5EF 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) | #A0B8F2 | 0.022 |
| Deuteranopia (no green cones) | #96AFEE | 0.016 |
| Tritanopia (no blue cones) | #6FC1C9 | 0.082 |
| Achromatopsia (no color) | #B3B3B3 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B5EF
#90B5EF
oklch(76.8% 0.093 259.2)
- #D3AD6D
#D3AD6D
oklch(76.8% 0.093 79.7)
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 #90B5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.021
- Pastel Blue #A2BFFE ΔE 0.040
- Light Grey Blue #9DBCD4 ΔE 0.051
- Lightblue #7BC8F6 ΔE 0.051
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Sky #82CAFC ΔE 0.054
- Light Sky Blue #87CEFA ΔE 0.064
- Cloudy Blue #ACC2D9 ΔE 0.065
Use #90B5EF 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.