#A3E4EF
Closest named color: Powder Blue (#B0E0E6). oklch(87.9% 0.067 209.1), rgb(163, 228, 239).
Aa
Black text reads best on this color (14.90:1).
About this color
#A3E4EF is a light, muted teal or cyan. In OKLCH its lightness is 88%, its chroma 0.067 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Powder Blue (#B0E0E6), ΔE 0.018 away. Black text reads best on it, at 14.90:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Powder Blue (#B0E0E6) |
| Black text | 14.90:1 |
| White text | 1.40:1 |
Values
| HEX | #A3E4EF |
| RGB | rgb(163, 228, 239) |
| HSL | hsl(189, 70%, 79%) |
| OKLCH | oklch(87.9% 0.067 209.1) |
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 #A3E4EF | 1.40:1 | Fails | Lc -22.5 | Dividers and decoration only |
| Black text on #A3E4EF | 14.90:1 | AAA | Lc 84.0 | Fine for body text |
| #A3E4EF text on white | 1.40:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #A3E4EF text on black | 14.90:1 | AAA | Lc -83.7 | 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
#EDF8FA
oklch(97.1% 0.012 209.8)
-
Step 100
100
#D8EFF3
oklch(93.6% 0.025 209.3)
-
Step 200
200 (this color)
#A3E4EF
oklch(87.9% 0.067 209.1)
-
Step 300
300
#7AD0DF
oklch(80.9% 0.086 209.9)
-
Step 400
400
#00B5C9
oklch(70.8% 0.122 208.7)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006D7A
oklch(49% 0.084 209.1)
-
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)
#A3E4EF 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) | #D9DFF0 | 0.064 |
| Deuteranopia (no green cones) | #CCD5EF | 0.059 |
| Tritanopia (no blue cones) | #88EAE7 | 0.034 |
| Achromatopsia (no color) | #D9D9D9 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3E4EF
#A3E4EF
oklch(87.9% 0.067 209.1)
- #FFC8BF
#FFC8BF
oklch(87.9% 0.064 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 #A3E4EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Powder Blue #B0E0E6 ΔE 0.018
- Robin's Egg Blue #98EFF9 ΔE 0.029
- Celeste #A8DADC ΔE 0.031
- Light Blue #ADD8E6 ΔE 0.031
- Pale Turquoise #AFEEEE ΔE 0.032
- Robin Egg Blue #8AF1FE ΔE 0.038
- Robin's Egg #6DEDFD ΔE 0.048
- Diamond #B9F2FF ΔE 0.048
Use #A3E4EF 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.