#AACBF9
Closest named color: Baby Blue (#A2CFFE). oklch(83.4% 0.074 256.7), rgb(170, 203, 249).
Aa
Black text reads best on this color (12.61:1).
About this color
#AACBF9 is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.074 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.013 away. Black text reads best on it, at 12.61:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.61:1 |
| White text | 1.66:1 |
Values
| HEX | #AACBF9 |
| RGB | rgb(170, 203, 249) |
| HSL | hsl(215, 87%, 82%) |
| OKLCH | oklch(83.4% 0.074 256.7) |
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 #AACBF9 | 1.66:1 | Fails | Lc -32.9 | Non-text elements, placeholder text |
| Black text on #AACBF9 | 12.61:1 | AAA | Lc 74.6 | Content text, not long reading |
| #AACBF9 text on white | 1.66:1 | Fails | Lc 29.2 | Dividers and decoration only |
| #AACBF9 text on black | 12.61:1 | AAA | Lc -73.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF5
oklch(88.5% 0.041 256.2)
-
Step 300
300 (this color)
#AACBF9
oklch(83.4% 0.074 256.7)
-
Step 400
400
#6FA2EA
oklch(70.6% 0.119 257.1)
-
Step 500
500
#4789E3
oklch(63% 0.152 256.8)
-
Step 600
600
#2771D1
oklch(55.6% 0.165 256.8)
-
Step 700
700
#195EB5
oklch(49.1% 0.153 256.8)
-
Step 800
800
#184D92
oklch(42.6% 0.126 256.8)
-
Step 900
900
#1B4175
oklch(37.7% 0.099 257.1)
-
Step 950
950
#112644
oklch(26.9% 0.062 257.5)
#AACBF9 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) | #BBCDFB | 0.023 |
| Deuteranopia (no green cones) | #B2C5F8 | 0.017 |
| Tritanopia (no blue cones) | #92D5DA | 0.066 |
| Achromatopsia (no color) | #C9C9C9 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AACBF9
#AACBF9
oklch(83.4% 0.074 256.7)
- #E4C392
#E4C392
oklch(83.4% 0.074 77.3)
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 #AACBF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.013
- Light Periwinkle #C1C6FC ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.034
- Pastel Blue #A2BFFE ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.037
- Light Sky Blue #87CEFA ΔE 0.038
- Sky #82CAFC ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.045
Use #AACBF9 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.