#A3ACEE
Closest named color: Carolina Blue (#8AB8FE). oklch(76.2% 0.095 277.9), rgb(163, 172, 238).
Aa
Black text reads best on this color (9.69:1).
About this color
#A3ACEE is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.095 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.042 away. Black text reads best on it, at 9.69:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.69:1 |
| White text | 2.16:1 |
Values
| HEX | #A3ACEE |
| RGB | rgb(163, 172, 238) |
| HSL | hsl(233, 69%, 79%) |
| OKLCH | oklch(76.2% 0.095 277.9) |
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 #A3ACEE | 2.16:1 | Fails | Lc -47.3 | Large or bold text, headings |
| Black text on #A3ACEE | 9.69:1 | AAA | Lc 61.4 | Content text, not long reading |
| #A3ACEE text on white | 2.16:1 | Fails | Lc 42.6 | Non-text elements, placeholder text |
| #A3ACEE text on black | 9.69:1 | AAA | Lc -59.6 | Large or bold text, headings |
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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FD
oklch(93.7% 0.027 276.8)
-
Step 200
200
#D0D6FD
oklch(88.4% 0.054 278.3)
-
Step 300
300 (this color)
#A3ACEE
oklch(76.2% 0.095 277.9)
-
Step 400
400
#8B95FE
oklch(70.8% 0.153 277.6)
-
Step 500
500
#7276FB
oklch(63.1% 0.194 278)
-
Step 600
600
#5D5AEB
oklch(55.6% 0.212 277.9)
-
Step 700
700
#4D49CC
oklch(49.2% 0.196 277.7)
-
Step 800
800
#3F3DA5
oklch(42.8% 0.163 277.9)
-
Step 900
900
#343583
oklch(37.6% 0.128 277.7)
-
Step 950
950
#1E204D
oklch(27% 0.081 277.5)
#A3ACEE 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) | #98B3F1 | 0.021 |
| Deuteranopia (no green cones) | #94ADEC | 0.020 |
| Tritanopia (no blue cones) | #8FB8C3 | 0.084 |
| Achromatopsia (no color) | #B0B0B0 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3ACEE
#A3ACEE
oklch(76.2% 0.095 277.9)
- #C2B26A
#C2B26A
oklch(76.1% 0.094 97.2)
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 #A3ACEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.049
- Pale Violet #CEAEFA ΔE 0.065
- Periwinkle Blue #8F99FB ΔE 0.065
- Light Grey Blue #9DBCD4 ΔE 0.066
- Pastel Purple #CAA0FF ΔE 0.069
- Lilac #CEA2FD ΔE 0.071
- Baby Purple #CA9BF7 ΔE 0.071
Use #A3ACEE 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.