#A3F3FA
Closest named color: Robin's Egg Blue (#98EFF9). oklch(91.5% 0.079 202.9), rgb(163, 243, 250).
Aa
Black text reads best on this color (16.75:1).
About this color
#A3F3FA is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 91%, its chroma 0.079 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.016 away. Black text reads best on it, at 16.75:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 16.75:1 |
| White text | 1.25:1 |
Values
| HEX | #A3F3FA |
| RGB | rgb(163, 243, 250) |
| HSL | hsl(185, 90%, 81%) |
| OKLCH | oklch(91.5% 0.079 202.9) |
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 #A3F3FA | 1.25:1 | Fails | Lc -14.4 | Not readable |
| Black text on #A3F3FA | 16.75:1 | AAA | Lc 91.1 | Preferred for body text |
| #A3F3FA text on white | 1.25:1 | Fails | Lc 12.5 | Not readable |
| #A3F3FA text on black | 16.75:1 | AAA | Lc -91.5 | 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
#ECF8F9
oklch(97% 0.013 202.9)
-
Step 100
100 (this color)
#A3F3FA
oklch(91.5% 0.079 202.9)
-
Step 200
200
#AEE5E9
oklch(88.5% 0.056 201.8)
-
Step 300
300
#66D4DD
oklch(80.9% 0.101 202.6)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#A3F3FA 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) | #E8ECFB | 0.080 |
| Deuteranopia (no green cones) | #D8E1FB | 0.073 |
| Tritanopia (no blue cones) | #81F9F5 | 0.035 |
| Achromatopsia (no color) | #E6E6E6 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3F3FA
#A3F3FA
oklch(91.5% 0.079 202.9)
- #FFD8D6
#FFD8D6
oklch(91.5% 0.044 21.5)
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 #A3F3FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.016
- Pale Turquoise #AFEEEE ΔE 0.019
- Robin Egg Blue #8AF1FE ΔE 0.025
- Diamond #B9F2FF ΔE 0.025
- Pale Sky Blue #BDF6FE ΔE 0.030
- Pale Cyan #B7FFFA ΔE 0.040
- Duck Egg Blue #C3FBF4 ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.049
Use #A3F3FA 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.