#90D4EB
Closest named color: Sky Blue (#87CEEB). oklch(83.3% 0.075 221.2), rgb(144, 212, 235).
Aa
Black text reads best on this color (12.80:1).
About this color
#90D4EB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.075 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.020 away. Black text reads best on it, at 12.80:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.80:1 |
| White text | 1.64:1 |
Values
| HEX | #90D4EB |
| RGB | rgb(144, 212, 235) |
| HSL | hsl(195, 69%, 74%) |
| OKLCH | oklch(83.3% 0.075 221.2) |
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 #90D4EB | 1.64:1 | Fails | Lc -32.0 | Non-text elements, placeholder text |
| Black text on #90D4EB | 12.80:1 | AAA | Lc 75.4 | Fine for body text |
| #90D4EB text on white | 1.64:1 | Fails | Lc 28.4 | Dividers and decoration only |
| #90D4EB text on black | 12.80:1 | AAA | Lc -74.5 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DBEEF4
oklch(93.7% 0.022 218.6)
-
Step 200
200
#BCE0ED
oklch(88.5% 0.042 221.7)
-
Step 300
300 (this color)
#90D4EB
oklch(83.3% 0.075 221.2)
-
Step 400
400
#29B1D5
oklch(70.7% 0.121 220.9)
-
Step 500
500
#0099BB
oklch(63.2% 0.116 221)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495B
oklch(37.6% 0.069 221.4)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#90D4EB 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) | #C6D0EC | 0.063 |
| Deuteranopia (no green cones) | #B8C5EB | 0.058 |
| Tritanopia (no blue cones) | #6CDCDB | 0.049 |
| Achromatopsia (no color) | #CACACA | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D4EB
#90D4EB
oklch(83.3% 0.075 221.2)
- #F4B8A3
#F4B8A3
oklch(83.2% 0.076 40.1)
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 #90D4EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.020
- Light Sky Blue #87CEFA ΔE 0.032
- Light Blue #ADD8E6 ΔE 0.036
- Celeste #A8DADC ΔE 0.040
- Baby Blue #A2CFFE ΔE 0.040
- Sky #82CAFC ΔE 0.045
- Lightblue #7BC8F6 ΔE 0.047
- Light Blue Grey #B7C9E2 ΔE 0.049
Use #90D4EB 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.