#90CAEE
Closest named color: Sky Blue (#87CEEB). oklch(81.2% 0.079 236.3), rgb(144, 202, 238).
Aa
Black text reads best on this color (11.86:1).
About this color
#90CAEE is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.079 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.015 away. Black text reads best on it, at 11.86:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.86:1 |
| White text | 1.76:1 |
Values
| HEX | #90CAEE |
| RGB | rgb(144, 202, 238) |
| HSL | hsl(203, 73%, 75%) |
| OKLCH | oklch(81.2% 0.079 236.3) |
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 #90CAEE | 1.76:1 | Fails | Lc -36.4 | Non-text elements, placeholder text |
| Black text on #90CAEE | 11.86:1 | AAA | Lc 71.4 | Content text, not long reading |
| #90CAEE text on white | 1.76:1 | Fails | Lc 32.4 | Non-text elements, placeholder text |
| #90CAEE text on black | 11.86:1 | AAA | Lc -70.2 | 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
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BFDEF3
oklch(88.5% 0.044 237.6)
-
Step 300
300 (this color)
#90CAEE
oklch(81.2% 0.079 236.3)
-
Step 400
400
#43ACE4
oklch(70.8% 0.125 235.9)
-
Step 500
500
#0094D0
oklch(63.1% 0.136 236.2)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006894
oklch(49% 0.106 236.4)
-
Step 800
800
#00557A
oklch(42.5% 0.092 236.4)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#90CAEE 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) | #BAC9F0 | 0.050 |
| Deuteranopia (no green cones) | #ADBEED | 0.044 |
| Tritanopia (no blue cones) | #6DD3D6 | 0.059 |
| Achromatopsia (no color) | #C3C3C3 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CAEE
#90CAEE
oklch(81.2% 0.079 236.3)
- #EAB590
#EAB590
oklch(81.2% 0.079 56.3)
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 #90CAEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.015
- Light Sky Blue #87CEFA ΔE 0.018
- Sky #82CAFC ΔE 0.024
- Lightblue #7BC8F6 ΔE 0.025
- Light Cornflower Blue #98C1D9 ΔE 0.032
- Baby Blue #A2CFFE ΔE 0.033
- Light Steel Blue #B0C4DE ΔE 0.040
- Cloudy Blue #ACC2D9 ΔE 0.041
Use #90CAEE 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.