#AACAEF
Closest named color: Baby Blue (#A2CFFE). oklch(82.8% 0.063 252.3), rgb(170, 202, 239).
Aa
Black text reads best on this color (12.40:1).
About this color
#AACAEF is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.063 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.022 away. Black text reads best on it, at 12.40:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.40:1 |
| White text | 1.69:1 |
Values
| HEX | #AACAEF |
| RGB | rgb(170, 202, 239) |
| HSL | hsl(212, 68%, 80%) |
| OKLCH | oklch(82.8% 0.063 252.3) |
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 #AACAEF | 1.69:1 | Fails | Lc -33.9 | Non-text elements, placeholder text |
| Black text on #AACAEF | 12.40:1 | AAA | Lc 73.7 | Content text, not long reading |
| #AACAEF text on white | 1.69:1 | Fails | Lc 30.1 | Non-text elements, placeholder text |
| #AACAEF text on black | 12.40:1 | AAA | Lc -72.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBF0
oklch(88.4% 0.035 252.3)
-
Step 300
300 (this color)
#AACAEF
oklch(82.8% 0.063 252.3)
-
Step 400
400
#72A4DE
oklch(70.7% 0.101 252.8)
-
Step 500
500
#4B8DD4
oklch(63.2% 0.127 252)
-
Step 600
600
#2B75C2
oklch(55.6% 0.14 252.5)
-
Step 700
700
#1D62A7
oklch(49.1% 0.129 252.3)
-
Step 800
800
#1B5087
oklch(42.6% 0.107 252.5)
-
Step 900
900
#1C436C
oklch(37.7% 0.083 251.9)
-
Step 950
950
#12273F
oklch(26.9% 0.053 253.1)
#AACAEF 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) | #BDCBF1 | 0.025 |
| Deuteranopia (no green cones) | #B4C4EE | 0.019 |
| Tritanopia (no blue cones) | #96D2D6 | 0.054 |
| Achromatopsia (no color) | #C7C7C7 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AACAEF
#AACAEF
oklch(82.8% 0.063 252.3)
- #E0C19A
#E0C19A
oklch(82.8% 0.063 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 #AACAEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.022
- Light Blue Grey #B7C9E2 ΔE 0.023
- Light Steel Blue #B0C4DE ΔE 0.025
- Cloudy Blue #ACC2D9 ΔE 0.032
- Light Periwinkle #C1C6FC ΔE 0.038
- Light Sky Blue #87CEFA ΔE 0.039
- Sky Blue #87CEEB ΔE 0.040
- Pastel Blue #A2BFFE ΔE 0.043
Use #AACAEF 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.