#AAE9FB
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89.8% 0.068 217.4), rgb(170, 233, 251).
Aa
Black text reads best on this color (15.75:1).
About this color
#AAE9FB is a light, muted teal or cyan. In OKLCH its lightness is 90%, its chroma 0.068 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.024 away. Black text reads best on it, at 15.75:1.
| Hue family | Teals and cyans |
| Lightness | light (90%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.75:1 |
| White text | 1.33:1 |
Values
| HEX | #AAE9FB |
| RGB | rgb(170, 233, 251) |
| HSL | hsl(193, 91%, 83%) |
| OKLCH | oklch(89.8% 0.068 217.4) |
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 #AAE9FB | 1.33:1 | Fails | Lc -18.7 | Dividers and decoration only |
| Black text on #AAE9FB | 15.75:1 | AAA | Lc 87.3 | Fine for body text |
| #AAE9FB text on white | 1.33:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #AAE9FB text on black | 15.75:1 | AAA | Lc -87.3 | 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
#EDF8FB
oklch(97.2% 0.012 215.8)
-
Step 100
100
#D8EEF5
oklch(93.5% 0.025 218.8)
-
Step 200
200 (this color)
#AAE9FB
oklch(89.8% 0.068 217.4)
-
Step 300
300
#7BCFE6
oklch(80.9% 0.088 217.4)
-
Step 400
400
#00B3D4
oklch(70.7% 0.127 217.3)
-
Step 500
500
#0099B6
oklch(63% 0.113 217.6)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#AAE9FB 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) | #DDE5FC | 0.060 |
| Deuteranopia (no green cones) | #D0DBFB | 0.055 |
| Tritanopia (no blue cones) | #8EF0EE | 0.041 |
| Achromatopsia (no color) | #DFDFDF | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAE9FB
#AAE9FB
oklch(89.8% 0.068 217.4)
- #FFD1C4
#FFD1C4
oklch(89.7% 0.055 36.3)
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 #AAE9FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.024
- Pale Turquoise #AFEEEE ΔE 0.026
- Diamond #B9F2FF ΔE 0.030
- Powder Blue #B0E0E6 ΔE 0.031
- Robin Egg Blue #8AF1FE ΔE 0.034
- Pale Sky Blue #BDF6FE ΔE 0.042
- Light Blue #ADD8E6 ΔE 0.046
- Celeste #A8DADC ΔE 0.050
Use #AAE9FB 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.