#A4BCEF
Closest named color: Pastel Blue (#A2BFFE). oklch(79.5% 0.077 265), rgb(164, 188, 239).
Aa
Black text reads best on this color (11.01:1).
About this color
#A4BCEF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.077 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.021 away. Black text reads best on it, at 11.01:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.01:1 |
| White text | 1.90:1 |
Values
| HEX | #A4BCEF |
| RGB | rgb(164, 188, 239) |
| HSL | hsl(221, 70%, 79%) |
| OKLCH | oklch(79.5% 0.077 265) |
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 #A4BCEF | 1.90:1 | Fails | Lc -40.6 | Non-text elements, placeholder text |
| Black text on #A4BCEF | 11.01:1 | AAA | Lc 67.6 | Content text, not long reading |
| #A4BCEF text on white | 1.90:1 | Fails | Lc 36.3 | Non-text elements, placeholder text |
| #A4BCEF text on black | 11.01:1 | AAA | Lc -66.2 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300 (this color)
#A4BCEF
oklch(79.5% 0.077 265)
-
Step 400
400
#7B9EEE
oklch(70.7% 0.124 265.4)
-
Step 500
500
#5A84E8
oklch(63.1% 0.158 265.1)
-
Step 600
600
#406BD7
oklch(55.6% 0.173 264.9)
-
Step 700
700
#3359BA
oklch(49.2% 0.159 265)
-
Step 800
800
#2A4997
oklch(42.7% 0.133 265)
-
Step 900
900
#263E78
oklch(37.7% 0.103 265)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#A4BCEF 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) | #ABBFF1 | 0.013 |
| Deuteranopia (no green cones) | #A4B9EE | 0.008 |
| Tritanopia (no blue cones) | #8FC6CD | 0.069 |
| Achromatopsia (no color) | #BCBCBC | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4BCEF
#A4BCEF
oklch(79.5% 0.077 265)
- #D3B982
#D3B982
oklch(79.5% 0.078 85.4)
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 #A4BCEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.021
- Light Steel Blue #B0C4DE ΔE 0.041
- Carolina Blue #8AB8FE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Sky #82CAFC ΔE 0.048
- Baby Blue #A2CFFE ΔE 0.049
Use #A4BCEF 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.