#90D5EF
Closest named color: Sky Blue (#87CEEB). oklch(83.6% 0.078 223.7), rgb(144, 213, 239).
Aa
Black text reads best on this color (12.94:1).
About this color
#90D5EF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.078 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.022 away. Black text reads best on it, at 12.94:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.94:1 |
| White text | 1.62:1 |
Values
| HEX | #90D5EF |
| RGB | rgb(144, 213, 239) |
| HSL | hsl(196, 75%, 75%) |
| OKLCH | oklch(83.6% 0.078 223.7) |
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 #90D5EF | 1.62:1 | Fails | Lc -31.3 | Non-text elements, placeholder text |
| Black text on #90D5EF | 12.94:1 | AAA | Lc 76.1 | Fine for body text |
| #90D5EF text on white | 1.62:1 | Fails | Lc 27.7 | Dividers and decoration only |
| #90D5EF text on black | 12.94:1 | AAA | Lc -75.2 | 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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#DBEEF5
oklch(93.7% 0.022 221.8)
-
Step 200
200
#BBE0EE
oklch(88.5% 0.043 222.8)
-
Step 300
300 (this color)
#90D5EF
oklch(83.6% 0.078 223.7)
-
Step 400
400
#24B1DA
oklch(70.8% 0.125 223.6)
-
Step 500
500
#0098BE
oklch(63.1% 0.118 223.7)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#90D5EF 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) | #C6D1F0 | 0.063 |
| Deuteranopia (no green cones) | #B8C6EF | 0.057 |
| Tritanopia (no blue cones) | #6ADDDD | 0.052 |
| Achromatopsia (no color) | #CBCBCB | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D5EF
#90D5EF
oklch(83.6% 0.078 223.7)
- #F6BAA0
#F6BAA0
oklch(83.7% 0.078 44.5)
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 #90D5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.022
- Light Sky Blue #87CEFA ΔE 0.030
- Light Blue #ADD8E6 ΔE 0.036
- Baby Blue #A2CFFE ΔE 0.037
- Celeste #A8DADC ΔE 0.042
- Sky #82CAFC ΔE 0.043
- Lightblue #7BC8F6 ΔE 0.047
- Light Blue Grey #B7C9E2 ΔE 0.050
Use #90D5EF 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.