#90DDF4
Closest named color: Light Blue (#ADD8E6). oklch(85.5% 0.082 218.7), rgb(144, 221, 244).
Aa
Black text reads best on this color (13.83:1).
About this color
#90DDF4 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.082 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.033 away. Black text reads best on it, at 13.83:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.83:1 |
| White text | 1.51:1 |
Values
| HEX | #90DDF4 |
| RGB | rgb(144, 221, 244) |
| HSL | hsl(194, 82%, 76%) |
| OKLCH | oklch(85.5% 0.082 218.7) |
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 #90DDF4 | 1.51:1 | Fails | Lc -27.2 | Dividers and decoration only |
| Black text on #90DDF4 | 13.83:1 | AAA | Lc 79.8 | Fine for body text |
| #90DDF4 text on white | 1.51:1 | Fails | Lc 24.0 | Dividers and decoration only |
| #90DDF4 text on black | 13.83:1 | AAA | Lc -79.2 | 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 200.
-
Step 50
50
#ECF8FC
oklch(97.1% 0.014 219.6)
-
Step 100
100
#D4EFF8
oklch(93.5% 0.031 219.8)
-
Step 200
200 (this color)
#90DDF4
oklch(85.5% 0.082 218.7)
-
Step 300
300
#67D1EF
oklch(80.9% 0.106 218.9)
-
Step 400
400
#00B3D6
oklch(70.8% 0.128 218.5)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#90DDF4 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) | #CED8F5 | 0.071 |
| Deuteranopia (no green cones) | #BFCDF4 | 0.064 |
| Tritanopia (no blue cones) | #66E5E4 | 0.050 |
| Achromatopsia (no color) | #D2D2D2 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90DDF4
#90DDF4
oklch(85.5% 0.082 218.7)
- #FFBEA9
#FFBEA9
oklch(85.6% 0.081 38.7)
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 #90DDF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.033
- Celeste #A8DADC ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.040
- Sky Blue #87CEEB ΔE 0.042
- Robin's Egg #6DEDFD ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.046
- Baby Blue #A2CFFE ΔE 0.047
- Robin's Egg Blue #98EFF9 ΔE 0.049
Use #90DDF4 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.