#A9CEEB
Closest named color: Light Blue Grey (#B7C9E2). oklch(83.4% 0.057 242), rgb(169, 206, 235).
Aa
Black text reads best on this color (12.71:1).
About this color
#A9CEEB is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.057 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.021 away. Black text reads best on it, at 12.71:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.71:1 |
| White text | 1.65:1 |
Values
| HEX | #A9CEEB |
| RGB | rgb(169, 206, 235) |
| HSL | hsl(206, 62%, 79%) |
| OKLCH | oklch(83.4% 0.057 242) |
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 #A9CEEB | 1.65:1 | Fails | Lc -32.5 | Non-text elements, placeholder text |
| Black text on #A9CEEB | 12.71:1 | AAA | Lc 75.0 | Fine for body text |
| #A9CEEB text on white | 1.65:1 | Fails | Lc 28.8 | Dividers and decoration only |
| #A9CEEB text on black | 12.71:1 | AAA | Lc -74.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300 (this color)
#A9CEEB
oklch(83.4% 0.057 242)
-
Step 400
400
#6CA8D4
oklch(70.8% 0.09 241.4)
-
Step 500
500
#3F91C9
oklch(63.1% 0.116 241.8)
-
Step 600
600
#137AB6
oklch(55.6% 0.126 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#09547F
oklch(42.7% 0.097 241.8)
-
Step 900
900
#144666
oklch(37.8% 0.075 241.4)
-
Step 950
950
#0E293C
oklch(27% 0.048 242.2)
#A9CEEB 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) | #C2CDEC | 0.031 |
| Deuteranopia (no green cones) | #B9C6EA | 0.027 |
| Tritanopia (no blue cones) | #95D5D7 | 0.046 |
| Achromatopsia (no color) | #C9C9C9 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9CEEB
#A9CEEB
oklch(83.4% 0.057 242)
- #E4C1A4
#E4C1A4
oklch(83.4% 0.056 61.6)
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 #A9CEEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.021
- Baby Blue #A2CFFE ΔE 0.027
- Light Steel Blue #B0C4DE ΔE 0.027
- Light Blue #ADD8E6 ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.034
- Sky Blue #87CEEB ΔE 0.037
- Light Sky Blue #87CEFA ΔE 0.041
- Celeste #A8DADC ΔE 0.044
Use #A9CEEB 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.