#90BBFF
Closest named color: Carolina Blue (#8AB8FE). oklch(78.7% 0.108 259.3), rgb(144, 187, 255).
Aa
Black text reads best on this color (10.73:1).
About this color
#90BBFF is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.108 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.011 away. Black text reads best on it, at 10.73:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.73:1 |
| White text | 1.95:1 |
Values
| HEX | #90BBFF |
| RGB | rgb(144, 187, 255) |
| HSL | hsl(217, 100%, 78%) |
| OKLCH | oklch(78.7% 0.108 259.3) |
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 #90BBFF | 1.95:1 | Fails | Lc -41.9 | Non-text elements, placeholder text |
| Black text on #90BBFF | 10.73:1 | AAA | Lc 66.4 | Content text, not long reading |
| #90BBFF text on white | 1.95:1 | Fails | Lc 37.5 | Non-text elements, placeholder text |
| #90BBFF text on black | 10.73:1 | AAA | Lc -64.9 | 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
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300 (this color)
#90BBFF
oklch(78.7% 0.108 259.3)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3584FF
oklch(63.2% 0.199 259.3)
-
Step 600
600
#0069F0
oklch(55.7% 0.219 259.3)
-
Step 700
700
#0058CB
oklch(49.1% 0.193 259.2)
-
Step 800
800
#0047A9
oklch(42.7% 0.169 259.5)
-
Step 900
900
#043C8C
oklch(37.8% 0.144 259.3)
-
Step 950
950
#062452
oklch(27% 0.091 259.1)
#90BBFF 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) | #A2BFFF | 0.025 |
| Deuteranopia (no green cones) | #95B5FE | 0.016 |
| Tritanopia (no blue cones) | #66CAD3 | 0.096 |
| Achromatopsia (no color) | #B9B9B9 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BBFF
#90BBFF
oklch(78.7% 0.108 259.3)
- #DFB265
#DFB265
oklch(78.8% 0.109 79.6)
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 #90BBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.011
- Pastel Blue #A2BFFE ΔE 0.025
- Sky #82CAFC ΔE 0.043
- Lightblue #7BC8F6 ΔE 0.044
- Light Sky Blue #87CEFA ΔE 0.053
- Baby Blue #A2CFFE ΔE 0.060
- Light Cornflower Blue #98C1D9 ΔE 0.063
- Light Grey Blue #9DBCD4 ΔE 0.064
Use #90BBFF 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.