#A3CEE7
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.9% 0.057 233.9), rgb(163, 206, 231).
Aa
Black text reads best on this color (12.53:1).
About this color
#A3CEE7 is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.057 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.026 away. Black text reads best on it, at 12.53:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.53:1 |
| White text | 1.67:1 |
Values
| HEX | #A3CEE7 |
| RGB | rgb(163, 206, 231) |
| HSL | hsl(202, 59%, 77%) |
| OKLCH | oklch(82.9% 0.057 233.9) |
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 #A3CEE7 | 1.67:1 | Fails | Lc -33.3 | Non-text elements, placeholder text |
| Black text on #A3CEE7 | 12.53:1 | AAA | Lc 74.3 | Content text, not long reading |
| #A3CEE7 text on white | 1.67:1 | Fails | Lc 29.5 | Dividers and decoration only |
| #A3CEE7 text on black | 12.53:1 | AAA | Lc -73.3 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300 (this color)
#A3CEE7
oklch(82.9% 0.057 233.9)
-
Step 400
400
#63AAD1
oklch(70.7% 0.092 234.2)
-
Step 500
500
#2C94C5
oklch(63.1% 0.117 234)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#054764
oklch(37.6% 0.077 234.9)
-
Step 950
950
#082A3A
oklch(27% 0.048 233.3)
#A3CEE7 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) | #C2CCE8 | 0.038 |
| Deuteranopia (no green cones) | #B9C5E7 | 0.034 |
| Tritanopia (no blue cones) | #8ED5D6 | 0.043 |
| Achromatopsia (no color) | #C8C8C8 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3CEE7
#A3CEE7
oklch(82.9% 0.057 233.9)
- #E6BEA5
#E6BEA5
oklch(83% 0.057 53.7)
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 #A3CEE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.028
- Sky Blue #87CEEB ΔE 0.030
- Light Blue #ADD8E6 ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.032
- Baby Blue #A2CFFE ΔE 0.032
- Light Sky Blue #87CEFA ΔE 0.038
- Light Cornflower Blue #98C1D9 ΔE 0.040
Use #A3CEE7 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.