#90FDEF
Closest named color: Light Aqua (#8CFFDB). oklch(92.5% 0.103 185), rgb(144, 253, 239).
Aa
Black text reads best on this color (17.48:1).
About this color
#90FDEF is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 92%, its chroma 0.103 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Light Aqua (#8CFFDB), ΔE 0.030 away. Black text reads best on it, at 17.48:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Light Aqua (#8CFFDB) |
| Black text | 17.48:1 |
| White text | 1.20:1 |
Values
| HEX | #90FDEF |
| RGB | rgb(144, 253, 239) |
| HSL | hsl(172, 96%, 78%) |
| OKLCH | oklch(92.5% 0.103 185) |
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 #90FDEF | 1.20:1 | Fails | Lc -11.3 | Not readable |
| Black text on #90FDEF | 17.48:1 | AAA | Lc 93.9 | Preferred for body text |
| #90FDEF text on white | 1.20:1 | Fails | Lc 9.7 | Not readable |
| #90FDEF text on black | 17.48:1 | AAA | Lc -94.5 | Preferred 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 100.
-
Step 50
50
#E9FAF7
oklch(97.2% 0.018 184.3)
-
Step 100
100 (this color)
#90FDEF
oklch(92.5% 0.103 185)
-
Step 200
200
#A1EADF
oklch(88.6% 0.074 184.2)
-
Step 300
300
#34DCCC
oklch(80.9% 0.133 185.1)
-
Step 400
400
#00B9AB
oklch(70.7% 0.124 185.3)
-
Step 500
500
#009F92
oklch(63.2% 0.111 184.7)
-
Step 600
600
#00867B
oklch(55.7% 0.098 184.8)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#90FDEF 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) | #F3F2EF | 0.110 |
| Deuteranopia (no green cones) | #E1E4F0 | 0.105 |
| Tritanopia (no blue cones) | #61FFF8 | 0.032 |
| Achromatopsia (no color) | #EAEAEA | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90FDEF
#90FDEF
oklch(92.5% 0.103 185)
- #FFDCE2
#FFDCE2
oklch(92.5% 0.04 6.2)
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 #90FDEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Aqua #8CFFDB ΔE 0.030
- Pale Aqua #B8FFEB ΔE 0.039
- Pale Cyan #B7FFFA ΔE 0.042
- Aquamarine #7FFFD4 ΔE 0.043
- Robin Egg Blue #8AF1FE ΔE 0.045
- Robin's Egg Blue #98EFF9 ΔE 0.045
- Pale Turquoise #AFEEEE ΔE 0.047
- Bright Cyan #41FDFE ΔE 0.049
Use #90FDEF 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.