#A3CEF0
Closest named color: Baby Blue (#A2CFFE). oklch(83.2% 0.066 242.4), rgb(163, 206, 240).
Aa
Black text reads best on this color (12.64:1).
About this color
#A3CEF0 is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.066 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.019 away. Black text reads best on it, at 12.64:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.64:1 |
| White text | 1.66:1 |
Values
| HEX | #A3CEF0 |
| RGB | rgb(163, 206, 240) |
| HSL | hsl(206, 72%, 79%) |
| OKLCH | oklch(83.2% 0.066 242.4) |
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 #A3CEF0 | 1.66:1 | Fails | Lc -32.8 | Non-text elements, placeholder text |
| Black text on #A3CEF0 | 12.64:1 | AAA | Lc 74.7 | Content text, not long reading |
| #A3CEF0 text on white | 1.66:1 | Fails | Lc 29.1 | Dividers and decoration only |
| #A3CEF0 text on black | 12.64:1 | AAA | Lc -73.8 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C5DDF0
oklch(88.6% 0.037 241.8)
-
Step 300
300 (this color)
#A3CEF0
oklch(83.2% 0.066 242.4)
-
Step 400
400
#61A8DD
oklch(70.6% 0.106 242.6)
-
Step 500
500
#2A91D4
oklch(63.1% 0.136 242.7)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#04466C
oklch(37.8% 0.088 242.2)
-
Step 950
950
#08293F
oklch(27% 0.055 242.5)
#A3CEF0 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) | #C0CDF2 | 0.036 |
| Deuteranopia (no green cones) | #B6C5EF | 0.031 |
| Tritanopia (no blue cones) | #8BD6D9 | 0.053 |
| Achromatopsia (no color) | #C9C9C9 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3CEF0
#A3CEF0
oklch(83.2% 0.066 242.4)
- #E8BF9C
#E8BF9C
oklch(83.2% 0.066 62.2)
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 #A3CEF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.019
- Light Blue Grey #B7C9E2 ΔE 0.029
- Light Sky Blue #87CEFA ΔE 0.032
- Sky Blue #87CEEB ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.032
- Light Blue #ADD8E6 ΔE 0.037
- Cloudy Blue #ACC2D9 ΔE 0.038
- Sky #82CAFC ΔE 0.042
Use #A3CEF0 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.