#90CBEE
Closest named color: Sky Blue (#87CEEB). oklch(81.4% 0.078 235.1), rgb(144, 203, 238).
Aa
Black text reads best on this color (11.96:1).
About this color
#90CBEE is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.078 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.014 away. Black text reads best on it, at 11.96:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.96:1 |
| White text | 1.75:1 |
Values
| HEX | #90CBEE |
| RGB | rgb(144, 203, 238) |
| HSL | hsl(202, 73%, 75%) |
| OKLCH | oklch(81.4% 0.078 235.1) |
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 #90CBEE | 1.75:1 | Fails | Lc -36.0 | Non-text elements, placeholder text |
| Black text on #90CBEE | 11.96:1 | AAA | Lc 71.8 | Content text, not long reading |
| #90CBEE text on white | 1.75:1 | Fails | Lc 32.0 | Non-text elements, placeholder text |
| #90CBEE text on black | 11.96:1 | AAA | Lc -70.7 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BEDEF2
oklch(88.4% 0.044 235.4)
-
Step 300
300 (this color)
#90CBEE
oklch(81.4% 0.078 235.1)
-
Step 400
400
#41ACE3
oklch(70.7% 0.125 235.1)
-
Step 500
500
#0095CE
oklch(63.2% 0.133 234.7)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#002A3E
oklch(26.9% 0.057 235.2)
#90CBEE 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) | #BBC9F0 | 0.051 |
| Deuteranopia (no green cones) | #AEBFED | 0.044 |
| Tritanopia (no blue cones) | #6DD4D6 | 0.059 |
| Achromatopsia (no color) | #C3C3C3 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CBEE
#90CBEE
oklch(81.4% 0.078 235.1)
- #EBB592
#EBB592
oklch(81.4% 0.079 54.3)
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 #90CBEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.014
- Light Sky Blue #87CEFA ΔE 0.018
- Sky #82CAFC ΔE 0.025
- Lightblue #7BC8F6 ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.034
- Light Steel Blue #B0C4DE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.041
Use #90CBEE 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.