#90CDEE
Closest named color: Sky Blue (#87CEEB). oklch(81.8% 0.078 232.6), rgb(144, 205, 238).
Aa
Black text reads best on this color (12.15:1).
About this color
#90CDEE is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.078 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.011 away. Black text reads best on it, at 12.15:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.15:1 |
| White text | 1.72:1 |
Values
| HEX | #90CDEE |
| RGB | rgb(144, 205, 238) |
| HSL | hsl(201, 73%, 75%) |
| OKLCH | oklch(81.8% 0.078 232.6) |
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 #90CDEE | 1.72:1 | Fails | Lc -35.0 | Non-text elements, placeholder text |
| Black text on #90CDEE | 12.15:1 | AAA | Lc 72.7 | Content text, not long reading |
| #90CDEE text on white | 1.72:1 | Fails | Lc 31.2 | Non-text elements, placeholder text |
| #90CDEE text on black | 12.15:1 | AAA | Lc -71.6 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BEDFF1
oklch(88.5% 0.043 231.8)
-
Step 300
300 (this color)
#90CDEE
oklch(81.8% 0.078 232.6)
-
Step 400
400
#3CADE1
oklch(70.7% 0.125 232.7)
-
Step 500
500
#0095CA
oklch(63% 0.13 232.7)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#90CDEE 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) | #BDCBF0 | 0.053 |
| Deuteranopia (no green cones) | #B0C0EE | 0.048 |
| Tritanopia (no blue cones) | #6CD6D8 | 0.057 |
| Achromatopsia (no color) | #C5C5C5 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CDEE
#90CDEE
oklch(81.8% 0.078 232.6)
- #EDB695
#EDB695
oklch(81.8% 0.078 52.3)
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 #90CDEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.011
- Light Sky Blue #87CEFA ΔE 0.018
- Sky #82CAFC ΔE 0.027
- Lightblue #7BC8F6 ΔE 0.030
- Baby Blue #A2CFFE ΔE 0.032
- Light Cornflower Blue #98C1D9 ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.042
- Cloudy Blue #ACC2D9 ΔE 0.043
Use #90CDEE 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.