#AACEFF
Closest named color: Baby Blue (#A2CFFE). oklch(84.2% 0.079 256.2), rgb(170, 206, 255).
Aa
Black text reads best on this color (12.98:1).
About this color
#AACEFF is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.079 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.010 away. Black text reads best on it, at 12.98:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.98:1 |
| White text | 1.61:1 |
Values
| HEX | #AACEFF |
| RGB | rgb(170, 206, 255) |
| HSL | hsl(215, 100%, 83%) |
| OKLCH | oklch(84.2% 0.079 256.2) |
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 #AACEFF | 1.61:1 | Fails | Lc -31.2 | Non-text elements, placeholder text |
| Black text on #AACEFF | 12.98:1 | AAA | Lc 76.2 | Fine for body text |
| #AACEFF text on white | 1.61:1 | Fails | Lc 27.6 | Dividers and decoration only |
| #AACEFF text on black | 12.98:1 | AAA | Lc -75.3 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300 (this color)
#AACEFF
oklch(84.2% 0.079 256.2)
-
Step 400
400
#6AA2EE
oklch(70.6% 0.127 256.4)
-
Step 500
500
#4089E9
oklch(63.1% 0.162 256.4)
-
Step 600
600
#1A71D7
oklch(55.7% 0.175 256.1)
-
Step 700
700
#095EBA
oklch(49.2% 0.162 256)
-
Step 800
800
#0E4D97
oklch(42.7% 0.136 256.2)
-
Step 900
900
#154178
oklch(37.7% 0.105 256)
-
Step 950
950
#0E2646
oklch(26.9% 0.067 256.5)
#AACEFF 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) | #BDD0FF | 0.025 |
| Deuteranopia (no green cones) | #B3C8FE | 0.018 |
| Tritanopia (no blue cones) | #90D9DE | 0.070 |
| Achromatopsia (no color) | #CBCBCB | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AACEFF
#AACEFF
oklch(84.2% 0.079 256.2)
- #E9C591
#E9C591
oklch(84.2% 0.079 76.5)
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 #AACEFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.010
- Light Periwinkle #C1C6FC ΔE 0.033
- Light Sky Blue #87CEFA ΔE 0.040
- Light Blue Grey #B7C9E2 ΔE 0.041
- Pastel Blue #A2BFFE ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.046
- Sky #82CAFC ΔE 0.047
- Sky Blue #87CEEB ΔE 0.051
Use #AACEFF 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.