#90B4EF
Closest named color: Carolina Blue (#8AB8FE). oklch(76.6% 0.094 260.1), rgb(144, 180, 239).
Aa
Black text reads best on this color (9.96:1).
About this color
#90B4EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.094 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.022 away. Black text reads best on it, at 9.96:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.96:1 |
| White text | 2.10:1 |
Values
| HEX | #90B4EF |
| RGB | rgb(144, 180, 239) |
| HSL | hsl(217, 75%, 75%) |
| OKLCH | oklch(76.6% 0.094 260.1) |
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 #90B4EF | 2.10:1 | Fails | Lc -45.9 | Large or bold text, headings |
| Black text on #90B4EF | 9.96:1 | AAA | Lc 62.7 | Content text, not long reading |
| #90B4EF text on white | 2.10:1 | Fails | Lc 41.2 | Non-text elements, placeholder text |
| #90B4EF text on black | 9.96:1 | AAA | Lc -61.0 | 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
#E0EBFD
oklch(93.7% 0.027 260.3)
-
Step 200
200
#C5DAFC
oklch(88.4% 0.052 260)
-
Step 300
300 (this color)
#90B4EF
oklch(76.6% 0.094 260.1)
-
Step 400
400
#679FFD
oklch(70.6% 0.151 260.2)
-
Step 500
500
#3D84FB
oklch(63.1% 0.192 260.1)
-
Step 600
600
#186AEA
oklch(55.6% 0.208 260)
-
Step 700
700
#0957CC
oklch(49.1% 0.194 260.1)
-
Step 800
800
#0D48A5
oklch(42.7% 0.161 260.1)
-
Step 900
900
#143E83
oklch(37.8% 0.125 260)
-
Step 950
950
#0D254C
oklch(27% 0.078 259.7)
#90B4EF 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) | #9FB8F2 | 0.023 |
| Deuteranopia (no green cones) | #95AFEE | 0.014 |
| Tritanopia (no blue cones) | #70C1C8 | 0.084 |
| Achromatopsia (no color) | #B3B3B3 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B4EF
#90B4EF
oklch(76.6% 0.094 260.1)
- #D2AD6C
#D2AD6C
oklch(76.6% 0.094 80.7)
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 #90B4EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.022
- Pastel Blue #A2BFFE ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.053
- Lightblue #7BC8F6 ΔE 0.053
- Light Cornflower Blue #98C1D9 ΔE 0.056
- Sky #82CAFC ΔE 0.057
- Light Sky Blue #87CEFA ΔE 0.067
- Cloudy Blue #ACC2D9 ΔE 0.067
Use #90B4EF 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.