#90BFFF
Closest named color: Carolina Blue (#8AB8FE). oklch(79.6% 0.104 256.3), rgb(144, 191, 255).
Aa
Black text reads best on this color (11.08:1).
About this color
#90BFFF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.104 and its hue 256°. 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 11.08:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 11.08:1 |
| White text | 1.89:1 |
Values
| HEX | #90BFFF |
| RGB | rgb(144, 191, 255) |
| HSL | hsl(215, 100%, 78%) |
| OKLCH | oklch(79.6% 0.104 256.3) |
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 #90BFFF | 1.89:1 | Fails | Lc -40.2 | Non-text elements, placeholder text |
| Black text on #90BFFF | 11.08:1 | AAA | Lc 67.9 | Content text, not long reading |
| #90BFFF text on white | 1.89:1 | Fails | Lc 36.0 | Non-text elements, placeholder text |
| #90BFFF text on black | 11.08:1 | AAA | Lc -66.5 | 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
#DDEBFE
oklch(93.5% 0.03 256)
-
Step 200
200
#C1DBFF
oklch(88.4% 0.057 256.6)
-
Step 300
300 (this color)
#90BFFF
oklch(79.6% 0.104 256.3)
-
Step 400
400
#5BA1FF
oklch(70.6% 0.156 256.4)
-
Step 500
500
#2086FF
oklch(63.1% 0.201 256.3)
-
Step 600
600
#006FE0
oklch(55.6% 0.192 256.3)
-
Step 700
700
#005DBE
oklch(49.2% 0.17 256.3)
-
Step 800
800
#004C9D
oklch(42.8% 0.147 256.2)
-
Step 900
900
#003F84
oklch(37.7% 0.129 256.1)
-
Step 950
950
#032550
oklch(27% 0.088 256.5)
#90BFFF 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) | #A7C2FF | 0.029 |
| Deuteranopia (no green cones) | #9AB7FE | 0.022 |
| Tritanopia (no blue cones) | #65CDD5 | 0.092 |
| Achromatopsia (no color) | #BCBCBC | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BFFF
#90BFFF
oklch(79.6% 0.104 256.3)
- #E3B36D
#E3B36D
oklch(79.5% 0.104 75.7)
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 #90BFFF, 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 0.021
- Sky #82CAFC ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.036
- Light Sky Blue #87CEFA ΔE 0.043
- Baby Blue #A2CFFE ΔE 0.050
- Sky Blue #87CEEB ΔE 0.057
- Light Cornflower Blue #98C1D9 ΔE 0.057
Use #90BFFF 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.