#90BBF9
Closest named color: Carolina Blue (#8AB8FE). oklch(78.5% 0.1 257.5), rgb(144, 187, 249).
Aa
Black text reads best on this color (10.66:1).
About this color
#90BBF9 is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.100 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.014 away. Black text reads best on it, at 10.66:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.66:1 |
| White text | 1.96:1 |
Values
| HEX | #90BBF9 |
| RGB | rgb(144, 187, 249) |
| HSL | hsl(215, 90%, 77%) |
| OKLCH | oklch(78.5% 0.1 257.5) |
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 #90BBF9 | 1.96:1 | Fails | Lc -42.3 | Non-text elements, placeholder text |
| Black text on #90BBF9 | 10.66:1 | AAA | Lc 66.0 | Content text, not long reading |
| #90BBF9 text on white | 1.96:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #90BBF9 text on black | 10.66:1 | AAA | Lc -64.5 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFE
oklch(93.6% 0.029 257.8)
-
Step 200
200
#C2DBFE
oklch(88.4% 0.055 256.8)
-
Step 300
300 (this color)
#90BBF9
oklch(78.5% 0.1 257.5)
-
Step 400
400
#5FA1FF
oklch(70.7% 0.154 257.4)
-
Step 500
500
#2A85FF
oklch(63.1% 0.2 257.6)
-
Step 600
600
#006DE5
oklch(55.6% 0.201 257.4)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800
#004AA1
oklch(42.6% 0.155 257.6)
-
Step 900
900
#023E86
oklch(37.7% 0.133 257.3)
-
Step 950
950
#06254F
oklch(27% 0.085 257.4)
#90BBF9 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) | #A4BEFC | 0.026 |
| Deuteranopia (no green cones) | #98B4F8 | 0.019 |
| Tritanopia (no blue cones) | #69C8D0 | 0.089 |
| Achromatopsia (no color) | #B9B9B9 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BBF9
#90BBF9
oklch(78.5% 0.1 257.5)
- #DDB16C
#DDB16C
oklch(78.5% 0.101 77.7)
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 #90BBF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.014
- Pastel Blue #A2BFFE ΔE 0.026
- Sky #82CAFC ΔE 0.040
- Lightblue #7BC8F6 ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.051
- Light Cornflower Blue #98C1D9 ΔE 0.054
- Light Grey Blue #9DBCD4 ΔE 0.056
- Baby Blue #A2CFFE ΔE 0.059
Use #90BBF9 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.