#AECEF9
Closest named color: Baby Blue (#A2CFFE). oklch(84.3% 0.07 255.9), rgb(174, 206, 249).
Aa
Black text reads best on this color (12.99:1).
About this color
#AECEF9 is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.070 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.015 away. Black text reads best on it, at 12.99:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.99:1 |
| White text | 1.61:1 |
Values
| HEX | #AECEF9 |
| RGB | rgb(174, 206, 249) |
| HSL | hsl(214, 86%, 83%) |
| OKLCH | oklch(84.3% 0.07 255.9) |
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 #AECEF9 | 1.61:1 | Fails | Lc -31.1 | Non-text elements, placeholder text |
| Black text on #AECEF9 | 12.99:1 | AAA | Lc 76.2 | Fine for body text |
| #AECEF9 text on white | 1.61:1 | Fails | Lc 27.6 | Dividers and decoration only |
| #AECEF9 text on black | 12.99:1 | AAA | Lc -75.4 | 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 300.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF3
oklch(88.5% 0.038 255.6)
-
Step 300
300 (this color)
#AECEF9
oklch(84.3% 0.07 255.9)
-
Step 400
400
#71A3E5
oklch(70.7% 0.111 255.7)
-
Step 500
500
#4A8ADE
oklch(63.1% 0.143 256)
-
Step 600
600
#2B72CB
oklch(55.5% 0.155 256)
-
Step 700
700
#1D5FB0
oklch(49% 0.145 256.1)
-
Step 800
800
#1B4E8E
oklch(42.6% 0.119 256)
-
Step 900
900
#1C4272
oklch(37.8% 0.093 255.6)
-
Step 950
950
#122743
oklch(27.1% 0.059 256.2)
#AECEF9 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) | #BFD0FB | 0.023 |
| Deuteranopia (no green cones) | #B7C8F8 | 0.018 |
| Tritanopia (no blue cones) | #98D7DC | 0.061 |
| Achromatopsia (no color) | #CBCBCB | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AECEF9
#AECEF9
oklch(84.3% 0.07 255.9)
- #E6C699
#E6C699
oklch(84.3% 0.069 76)
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 #AECEF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.015
- Light Periwinkle #C1C6FC ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.043
- Light Blue #ADD8E6 ΔE 0.044
- Pastel Blue #A2BFFE ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.048
Use #AECEF9 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.