#90BDEF
Closest named color: Carolina Blue (#8AB8FE). oklch(78.5% 0.086 251.6), rgb(144, 189, 239).
Aa
Black text reads best on this color (10.71:1).
About this color
#90BDEF is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.086 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.030 away. Black text reads best on it, at 10.71:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.71:1 |
| White text | 1.96:1 |
Values
| HEX | #90BDEF |
| RGB | rgb(144, 189, 239) |
| HSL | hsl(212, 75%, 75%) |
| OKLCH | oklch(78.5% 0.086 251.6) |
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 #90BDEF | 1.96:1 | Fails | Lc -42.1 | Non-text elements, placeholder text |
| Black text on #90BDEF | 10.71:1 | AAA | Lc 66.2 | Content text, not long reading |
| #90BDEF text on white | 1.96:1 | Fails | Lc 37.7 | Non-text elements, placeholder text |
| #90BDEF text on black | 10.71:1 | AAA | Lc -64.7 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCF9
oklch(88.5% 0.048 252.2)
-
Step 300
300 (this color)
#90BDEF
oklch(78.5% 0.086 251.6)
-
Step 400
400
#5AA5F4
oklch(70.8% 0.138 251.4)
-
Step 500
500
#1A8BEF
oklch(63% 0.177 251.6)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#042748
oklch(26.9% 0.073 251.2)
#90BDEF 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) | #AABEF1 | 0.032 |
| Deuteranopia (no green cones) | #9EB5EE | 0.025 |
| Tritanopia (no blue cones) | #6EC8CE | 0.074 |
| Achromatopsia (no color) | #B9B9B9 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BDEF
#90BDEF
oklch(78.5% 0.086 251.6)
- #DCB07B
#DCB07B
oklch(78.5% 0.086 71.2)
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 #90BDEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.030
- Pastel Blue #A2BFFE ΔE 0.032
- Lightblue #7BC8F6 ΔE 0.033
- Sky #82CAFC ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.044
- Sky Blue #87CEEB ΔE 0.048
Use #90BDEF 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.