#90D8EE
Closest named color: Sky Blue (#87CEEB). oklch(84.2% 0.078 219.1), rgb(144, 216, 238).
Aa
Black text reads best on this color (13.24:1).
About this color
#90D8EE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.078 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.029 away. Black text reads best on it, at 13.24:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.24:1 |
| White text | 1.58:1 |
Values
| HEX | #90D8EE |
| RGB | rgb(144, 216, 238) |
| HSL | hsl(194, 73%, 75%) |
| OKLCH | oklch(84.2% 0.078 219.1) |
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 #90D8EE | 1.58:1 | Fails | Lc -29.9 | Dividers and decoration only |
| Black text on #90D8EE | 13.24:1 | AAA | Lc 77.3 | Fine for body text |
| #90D8EE text on white | 1.58:1 | Fails | Lc 26.5 | Dividers and decoration only |
| #90D8EE text on black | 13.24:1 | AAA | Lc -76.5 | Fine for body text |
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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DAEEF4
oklch(93.6% 0.023 217.6)
-
Step 200
200
#BAE1ED
oklch(88.6% 0.044 218.4)
-
Step 300
300 (this color)
#90D8EE
oklch(84.2% 0.078 219.1)
-
Step 400
400
#16B2D5
oklch(70.7% 0.125 219.1)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#90D8EE 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) | #CAD4EF | 0.067 |
| Deuteranopia (no green cones) | #BBC8EE | 0.061 |
| Tritanopia (no blue cones) | #6AE0DF | 0.048 |
| Achromatopsia (no color) | #CDCDCD | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D8EE
#90D8EE
oklch(84.2% 0.078 219.1)
- #F9BBA6
#F9BBA6
oklch(84.3% 0.078 39.5)
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 #90D8EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.029
- Light Blue #ADD8E6 ΔE 0.032
- Celeste #A8DADC ΔE 0.036
- Light Sky Blue #87CEFA ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.045
- Sky #82CAFC ΔE 0.051
- Light Blue Grey #B7C9E2 ΔE 0.053
Use #90D8EE 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.