#A1CEFF
Closest named color: Baby Blue (#A2CFFE). oklch(83.7% 0.084 251), rgb(161, 206, 255).
Aa
Black text reads best on this color (12.78:1).
About this color
#A1CEFF is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.084 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.004 away. Black text reads best on it, at 12.78:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.78:1 |
| White text | 1.64:1 |
Values
| HEX | #A1CEFF |
| RGB | rgb(161, 206, 255) |
| HSL | hsl(211, 100%, 82%) |
| OKLCH | oklch(83.7% 0.084 251) |
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 #A1CEFF | 1.64:1 | Fails | Lc -32.1 | Non-text elements, placeholder text |
| Black text on #A1CEFF | 12.78:1 | AAA | Lc 75.4 | Fine for body text |
| #A1CEFF text on white | 1.64:1 | Fails | Lc 28.5 | Dividers and decoration only |
| #A1CEFF text on black | 12.78:1 | AAA | Lc -74.4 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFA
oklch(93.5% 0.025 251.9)
-
Step 200
200
#C3DCF8
oklch(88.5% 0.047 251.3)
-
Step 300
300 (this color)
#A1CEFF
oklch(83.7% 0.084 251)
-
Step 400
400
#5BA5F1
oklch(70.7% 0.134 250.8)
-
Step 500
500
#1E8CEC
oklch(63.1% 0.171 250.9)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#004279
oklch(37.6% 0.11 251.3)
-
Step 950
950
#052747
oklch(26.9% 0.071 251)
#A1CEFF 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) | #BBCFFF | 0.032 |
| Deuteranopia (no green cones) | #B0C6FE | 0.026 |
| Tritanopia (no blue cones) | #81D9DE | 0.072 |
| Achromatopsia (no color) | #CACACA | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1CEFF
#A1CEFF
oklch(83.7% 0.084 251)
- #EDC18D
#EDC18D
oklch(83.8% 0.084 70.9)
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 #A1CEFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.004
- Light Sky Blue #87CEFA ΔE 0.029
- Sky #82CAFC ΔE 0.036
- Pastel Blue #A2BFFE ΔE 0.039
- Light Periwinkle #C1C6FC ΔE 0.042
- Sky Blue #87CEEB ΔE 0.042
- Light Blue Grey #B7C9E2 ΔE 0.044
- Lightblue #7BC8F6 ΔE 0.047
Use #A1CEFF 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.