#90D4E3
Closest named color: Sky Blue (#87CEEB). oklch(83% 0.071 213), rgb(144, 212, 227).
Aa
Black text reads best on this color (12.71:1).
About this color
#90D4E3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.071 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.025 away. Black text reads best on it, at 12.71:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.71:1 |
| White text | 1.65:1 |
Values
| HEX | #90D4E3 |
| RGB | rgb(144, 212, 227) |
| HSL | hsl(191, 60%, 73%) |
| OKLCH | oklch(83% 0.071 213) |
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 #90D4E3 | 1.65:1 | Fails | Lc -32.4 | Non-text elements, placeholder text |
| Black text on #90D4E3 | 12.71:1 | AAA | Lc 75.1 | Fine for body text |
| #90D4E3 text on white | 1.65:1 | Fails | Lc 28.7 | Dividers and decoration only |
| #90D4E3 text on black | 12.71:1 | AAA | Lc -74.1 | 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
#EFF7F9
oklch(97.1% 0.009 214.3)
-
Step 100
100
#DBEEF2
oklch(93.6% 0.021 211.8)
-
Step 200
200
#BCE1E9
oklch(88.6% 0.04 212.2)
-
Step 300
300 (this color)
#90D4E3
oklch(83% 0.071 213)
-
Step 400
400
#2CB3CB
oklch(70.8% 0.114 212.9)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#90D4E3 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) | #C8CFE4 | 0.066 |
| Deuteranopia (no green cones) | #BAC5E3 | 0.060 |
| Tritanopia (no blue cones) | #70DAD8 | 0.039 |
| Achromatopsia (no color) | #C9C9C9 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D4E3
#90D4E3
oklch(83% 0.071 213)
- #F2B7AA
#F2B7AA
oklch(83% 0.071 32.7)
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 #90D4E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.025
- Celeste #A8DADC ΔE 0.035
- Light Blue #ADD8E6 ΔE 0.035
- Light Sky Blue #87CEFA ΔE 0.042
- Light Cornflower Blue #98C1D9 ΔE 0.049
- Baby Blue #A2CFFE ΔE 0.050
- Light Blue Grey #B7C9E2 ΔE 0.051
- Powder Blue #B0E0E6 ΔE 0.051
Use #90D4E3 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.