#90D8EB
Closest named color: Sky Blue (#87CEEB). oklch(84.1% 0.076 216.2), rgb(144, 216, 235).
Aa
Black text reads best on this color (13.20:1).
About this color
#90D8EB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.076 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.030 away. Black text reads best on it, at 13.20:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.20:1 |
| White text | 1.58:1 |
Values
| HEX | #90D8EB |
| RGB | rgb(144, 216, 235) |
| HSL | hsl(193, 69%, 74%) |
| OKLCH | oklch(84.1% 0.076 216.2) |
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 #90D8EB | 1.58:1 | Fails | Lc -30.1 | Non-text elements, placeholder text |
| Black text on #90D8EB | 13.20:1 | AAA | Lc 77.2 | Fine for body text |
| #90D8EB text on white | 1.58:1 | Fails | Lc 26.6 | Dividers and decoration only |
| #90D8EB text on black | 13.20:1 | AAA | Lc -76.4 | 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
#DAEEF3
oklch(93.6% 0.022 214.4)
-
Step 200
200
#BBE1EB
oklch(88.6% 0.042 215.5)
-
Step 300
300 (this color)
#90D8EB
oklch(84.1% 0.076 216.2)
-
Step 400
400
#18B3D1
oklch(70.8% 0.122 216)
-
Step 500
500
#009AB5
oklch(63.2% 0.112 216)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#90D8EB 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) | #CBD3EC | 0.069 |
| Deuteranopia (no green cones) | #BCC8EB | 0.063 |
| Tritanopia (no blue cones) | #6CDFDE | 0.044 |
| Achromatopsia (no color) | #CDCDCD | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D8EB
#90D8EB
oklch(84.1% 0.076 216.2)
- #F8BAA9
#F8BAA9
oklch(84.1% 0.076 35.9)
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 #90D8EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.030
- Light Blue #ADD8E6 ΔE 0.031
- Celeste #A8DADC ΔE 0.033
- Light Sky Blue #87CEFA ΔE 0.041
- Powder Blue #B0E0E6 ΔE 0.044
- Baby Blue #A2CFFE ΔE 0.046
- Light Blue Grey #B7C9E2 ΔE 0.054
- Sky #82CAFC ΔE 0.054
Use #90D8EB 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.