#A3D1EA
Closest named color: Light Blue (#ADD8E6). oklch(83.7% 0.06 232.1), rgb(163, 209, 234).
Aa
Black text reads best on this color (12.86:1).
About this color
#A3D1EA is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.060 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.025 away. Black text reads best on it, at 12.86:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 12.86:1 |
| White text | 1.63:1 |
Values
| HEX | #A3D1EA |
| RGB | rgb(163, 209, 234) |
| HSL | hsl(201, 63%, 78%) |
| OKLCH | oklch(83.7% 0.06 232.1) |
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 #A3D1EA | 1.63:1 | Fails | Lc -31.7 | Non-text elements, placeholder text |
| Black text on #A3D1EA | 12.86:1 | AAA | Lc 75.7 | Fine for body text |
| #A3D1EA text on white | 1.63:1 | Fails | Lc 28.1 | Dividers and decoration only |
| #A3D1EA text on black | 12.86:1 | AAA | Lc -74.8 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C4DEEC
oklch(88.6% 0.034 231.2)
-
Step 300
300 (this color)
#A3D1EA
oklch(83.7% 0.06 232.1)
-
Step 400
400
#5EABD2
oklch(70.7% 0.095 232.3)
-
Step 500
500
#1D95C6
oklch(63.1% 0.122 232.2)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A90
oklch(49.2% 0.1 232)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#052A3B
oklch(26.9% 0.051 233.3)
#A3D1EA 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) | #C5CFEB | 0.042 |
| Deuteranopia (no green cones) | #BBC7EA | 0.037 |
| Tritanopia (no blue cones) | #8CD8D9 | 0.044 |
| Achromatopsia (no color) | #CACACA | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3D1EA
#A3D1EA
oklch(83.7% 0.06 232.1)
- #EABFA6
#EABFA6
oklch(83.6% 0.06 51.8)
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 #A3D1EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.025
- Light Blue Grey #B7C9E2 ΔE 0.029
- Baby Blue #A2CFFE ΔE 0.031
- Sky Blue #87CEEB ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.035
- Celeste #A8DADC ΔE 0.037
- Light Sky Blue #87CEFA ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.040
Use #A3D1EA 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.