#90C5EE
Closest named color: Lightblue (#7BC8F6). oklch(80.1% 0.08 242.2), rgb(144, 197, 238).
Aa
Black text reads best on this color (11.40:1).
About this color
#90C5EE is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.080 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.022 away. Black text reads best on it, at 11.40:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 11.40:1 |
| White text | 1.84:1 |
Values
| HEX | #90C5EE |
| RGB | rgb(144, 197, 238) |
| HSL | hsl(206, 73%, 75%) |
| OKLCH | oklch(80.1% 0.08 242.2) |
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 #90C5EE | 1.84:1 | Fails | Lc -38.6 | Non-text elements, placeholder text |
| Black text on #90C5EE | 11.40:1 | AAA | Lc 69.4 | Content text, not long reading |
| #90C5EE text on white | 1.84:1 | Fails | Lc 34.5 | Non-text elements, placeholder text |
| #90C5EE text on black | 11.40:1 | AAA | Lc -68.1 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DDECF8
oklch(93.5% 0.023 241.9)
-
Step 200
200
#C0DDF5
oklch(88.4% 0.045 243.2)
-
Step 300
300 (this color)
#90C5EE
oklch(80.1% 0.08 242.2)
-
Step 400
400
#4DA9EA
oklch(70.7% 0.129 242.5)
-
Step 500
500
#0091DC
oklch(63% 0.151 242.6)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#90C5EE 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) | #B4C5F0 | 0.043 |
| Deuteranopia (no green cones) | #A7BBED | 0.035 |
| Tritanopia (no blue cones) | #6ECFD2 | 0.066 |
| Achromatopsia (no color) | #BFBFBF | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90C5EE
#90C5EE
oklch(80.1% 0.08 242.2)
- #E4B388
#E4B388
oklch(80.1% 0.081 62.5)
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 #90C5EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.022
- Sky #82CAFC ΔE 0.023
- Light Sky Blue #87CEFA ΔE 0.025
- Sky Blue #87CEEB ΔE 0.027
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Pastel Blue #A2BFFE ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.039
Use #90C5EE 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.