#AAC5EA
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.6% 0.06 256.3), rgb(170, 197, 234).
Aa
Black text reads best on this color (11.88:1).
About this color
#AAC5EA is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.060 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.017 away. Black text reads best on it, at 11.88:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.88:1 |
| White text | 1.76:1 |
Values
| HEX | #AAC5EA |
| RGB | rgb(170, 197, 234) |
| HSL | hsl(215, 60%, 79%) |
| OKLCH | oklch(81.6% 0.06 256.3) |
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 #AAC5EA | 1.76:1 | Fails | Lc -36.4 | Non-text elements, placeholder text |
| Black text on #AAC5EA | 11.88:1 | AAA | Lc 71.4 | Content text, not long reading |
| #AAC5EA text on white | 1.76:1 | Fails | Lc 32.4 | Non-text elements, placeholder text |
| #AAC5EA text on black | 11.88:1 | AAA | Lc -70.3 | 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
#E3EBF6
oklch(93.7% 0.017 256.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300 (this color)
#AAC5EA
oklch(81.6% 0.06 256.3)
-
Step 400
400
#79A3DC
oklch(70.7% 0.096 256.2)
-
Step 500
500
#568BD3
oklch(63.2% 0.123 256.4)
-
Step 600
600
#3A73C0
oklch(55.5% 0.134 256.7)
-
Step 700
700
#2C60A5
oklch(49% 0.124 256.5)
-
Step 800
800
#254F86
oklch(42.7% 0.103 256.1)
-
Step 900
900
#23426B
oklch(37.7% 0.08 256.1)
-
Step 950
950
#15273F
oklch(27% 0.051 256.1)
#AAC5EA 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) | #B8C6EC | 0.019 |
| Deuteranopia (no green cones) | #B1C0E9 | 0.015 |
| Tritanopia (no blue cones) | #98CDD1 | 0.053 |
| Achromatopsia (no color) | #C3C3C3 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC5EA
#AAC5EA
oklch(81.6% 0.06 256.3)
- #D9BE98
#D9BE98
oklch(81.5% 0.059 76.2)
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 #AAC5EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.017
- Cloudy Blue #ACC2D9 ΔE 0.023
- Light Blue Grey #B7C9E2 ΔE 0.025
- Baby Blue #A2CFFE ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.035
- Pastel Blue #A2BFFE ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.040
- Light Periwinkle #C1C6FC ΔE 0.041
Use #AAC5EA 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.