#A3EFFC
Closest named color: Robin's Egg Blue (#98EFF9). oklch(90.7% 0.077 209.3), rgb(163, 239, 252).
Aa
Black text reads best on this color (16.30:1).
About this color
#A3EFFC is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 91%, its chroma 0.077 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.012 away. Black text reads best on it, at 16.30:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 16.30:1 |
| White text | 1.28:1 |
Values
| HEX | #A3EFFC |
| RGB | rgb(163, 239, 252) |
| HSL | hsl(189, 94%, 81%) |
| OKLCH | oklch(90.7% 0.077 209.3) |
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 #A3EFFC | 1.28:1 | Fails | Lc -16.3 | Dividers and decoration only |
| Black text on #A3EFFC | 16.30:1 | AAA | Lc 89.4 | Fine for body text |
| #A3EFFC text on white | 1.28:1 | Fails | Lc 14.2 | Not readable |
| #A3EFFC text on black | 16.30:1 | AAA | Lc -89.7 | 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
#ECF8FA
oklch(97.1% 0.013 208.8)
-
Step 100
100
#D5F0F4
oklch(93.7% 0.029 207.4)
-
Step 200
200 (this color)
#A3EFFC
oklch(90.7% 0.077 209.3)
-
Step 300
300
#6BD2E3
oklch(80.8% 0.098 209.5)
-
Step 400
400
#00B5CA
oklch(70.8% 0.122 209.4)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#A3EFFC 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) | #E3E9FD | 0.074 |
| Deuteranopia (no green cones) | #D4DEFC | 0.068 |
| Tritanopia (no blue cones) | #81F6F3 | 0.039 |
| Achromatopsia (no color) | #E3E3E3 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3EFFC
#A3EFFC
oklch(90.7% 0.077 209.3)
- #FFD5CE
#FFD5CE
oklch(90.7% 0.048 29.1)
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 #A3EFFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.012
- Pale Turquoise #AFEEEE ΔE 0.021
- Robin Egg Blue #8AF1FE ΔE 0.023
- Diamond #B9F2FF ΔE 0.026
- Pale Sky Blue #BDF6FE ΔE 0.035
- Powder Blue #B0E0E6 ΔE 0.042
- Robin's Egg #6DEDFD ΔE 0.047
- Pale Cyan #B7FFFA ΔE 0.051
Use #A3EFFC 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.