#A9CEFB
Closest named color: Baby Blue (#A2CFFE). oklch(84% 0.075 253.6), rgb(169, 206, 251).
Aa
Black text reads best on this color (12.90:1).
About this color
#A9CEFB is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.075 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.008 away. Black text reads best on it, at 12.90:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.90:1 |
| White text | 1.62:1 |
Values
| HEX | #A9CEFB |
| RGB | rgb(169, 206, 251) |
| HSL | hsl(213, 91%, 82%) |
| OKLCH | oklch(84% 0.075 253.6) |
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 #A9CEFB | 1.62:1 | Fails | Lc -31.5 | Non-text elements, placeholder text |
| Black text on #A9CEFB | 12.90:1 | AAA | Lc 75.8 | Fine for body text |
| #A9CEFB text on white | 1.62:1 | Fails | Lc 28.0 | Dividers and decoration only |
| #A9CEFB text on black | 12.90:1 | AAA | Lc -75.0 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF5
oklch(88.5% 0.042 255)
-
Step 300
300 (this color)
#A9CEFB
oklch(84% 0.075 253.6)
-
Step 400
400
#69A4E9
oklch(70.7% 0.119 253.2)
-
Step 500
500
#3D8BE3
oklch(63.1% 0.153 253.7)
-
Step 600
600
#1373D1
oklch(55.6% 0.166 253.6)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800
#094F92
oklch(42.7% 0.127 253.3)
-
Step 900
900
#144275
oklch(37.7% 0.1 253.9)
-
Step 950
950
#0D2744
oklch(27% 0.063 253.3)
#A9CEFB 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) | #BECFFD | 0.027 |
| Deuteranopia (no green cones) | #B4C7FA | 0.021 |
| Tritanopia (no blue cones) | #90D8DD | 0.065 |
| Achromatopsia (no color) | #CBCBCB | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9CEFB
#A9CEFB
oklch(84% 0.075 253.6)
- #E9C495
#E9C495
oklch(84.1% 0.075 73.2)
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 #A9CEFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.008
- Light Periwinkle #C1C6FC ΔE 0.035
- Light Blue Grey #B7C9E2 ΔE 0.036
- Light Sky Blue #87CEFA ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.043
- Sky #82CAFC ΔE 0.045
- Sky Blue #87CEEB ΔE 0.046
Use #A9CEFB 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.