#90B0EE
Closest named color: Carolina Blue (#8AB8FE). oklch(75.7% 0.097 263.2), rgb(144, 176, 238).
Aa
Black text reads best on this color (9.63:1).
About this color
#90B0EE is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.097 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.027 away. Black text reads best on it, at 9.63:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.63:1 |
| White text | 2.18:1 |
Values
| HEX | #90B0EE |
| RGB | rgb(144, 176, 238) |
| HSL | hsl(220, 73%, 75%) |
| OKLCH | oklch(75.7% 0.097 263.2) |
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 #90B0EE | 2.18:1 | Fails | Lc -47.6 | Large or bold text, headings |
| Black text on #90B0EE | 9.63:1 | AAA | Lc 61.1 | Content text, not long reading |
| #90B0EE text on white | 2.18:1 | Fails | Lc 42.8 | Non-text elements, placeholder text |
| #90B0EE text on black | 9.63:1 | AAA | Lc -59.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAF0
oklch(88.6% 0.033 262.7)
-
Step 300
300
#ACC1E8
oklch(80.8% 0.06 262.8)
-
Step 400
400 (this color)
#90B0EE
oklch(75.7% 0.097 263.2)
-
Step 500
500
#6188D4
oklch(63.2% 0.123 262.7)
-
Step 600
600
#4870C1
oklch(55.6% 0.134 263)
-
Step 700
700
#3A5DA7
oklch(49.1% 0.125 263.4)
-
Step 800
800
#304D87
oklch(42.8% 0.103 262.8)
-
Step 900
900
#2A406C
oklch(37.6% 0.081 263)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#90B0EE 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) | #9AB4F1 | 0.017 |
| Deuteranopia (no green cones) | #91ACED | 0.010 |
| Tritanopia (no blue cones) | #71BDC5 | 0.087 |
| Achromatopsia (no color) | #B0B0B0 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B0EE
#90B0EE
oklch(75.7% 0.097 263.2)
- #CEAB66
#CEAB66
oklch(75.8% 0.097 83.3)
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 #90B0EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.027
- Pastel Blue #A2BFFE ΔE 0.049
- Light Grey Blue #9DBCD4 ΔE 0.060
- Lightblue #7BC8F6 ΔE 0.063
- Light Cornflower Blue #98C1D9 ΔE 0.064
- Sky #82CAFC ΔE 0.067
- Periwinkle Blue #8F99FB ΔE 0.068
- Cloudy Blue #ACC2D9 ΔE 0.075
Use #90B0EE 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.