#A1DDFF
Closest named color: Light Blue (#ADD8E6). oklch(86.8% 0.077 233.7), rgb(161, 221, 255).
Aa
Black text reads best on this color (14.30:1).
About this color
#A1DDFF is a light, moderately saturated blue. In OKLCH its lightness is 87%, its chroma 0.077 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.034 away. Black text reads best on it, at 14.30:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.30:1 |
| White text | 1.46:1 |
Values
| HEX | #A1DDFF |
| RGB | rgb(161, 221, 255) |
| HSL | hsl(202, 100%, 82%) |
| OKLCH | oklch(86.8% 0.077 233.7) |
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 #A1DDFF | 1.46:1 | Fails | Lc -25.1 | Dividers and decoration only |
| Black text on #A1DDFF | 14.30:1 | AAA | Lc 81.6 | Fine for body text |
| #A1DDFF text on white | 1.46:1 | Fails | Lc 22.1 | Dividers and decoration only |
| #A1DDFF text on black | 14.30:1 | AAA | Lc -81.2 | 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 200.
-
Step 50
50
#EDF7FD
oklch(97% 0.013 233.7)
-
Step 100
100
#D8EEFA
oklch(93.7% 0.028 231.4)
-
Step 200
200 (this color)
#A1DDFF
oklch(86.8% 0.077 233.7)
-
Step 300
300
#7CCCF7
oklch(81% 0.099 233.3)
-
Step 400
400
#00AEED
oklch(70.7% 0.147 233.5)
-
Step 500
500
#0095CC
oklch(63.1% 0.132 233.7)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002A3D
oklch(26.9% 0.056 233.8)
#A1DDFF 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) | #CDDBFF | 0.052 |
| Deuteranopia (no green cones) | #C0D0FF | 0.047 |
| Tritanopia (no blue cones) | #7FE6E8 | 0.058 |
| Achromatopsia (no color) | #D5D5D5 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1DDFF
#A1DDFF
oklch(86.8% 0.077 233.7)
- #FDC7A4
#FDC7A4
oklch(86.9% 0.077 54.4)
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 #A1DDFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.034
- Baby Blue #A2CFFE ΔE 0.037
- Powder Blue #B0E0E6 ΔE 0.041
- Celeste #A8DADC ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.051
- Robin's Egg Blue #98EFF9 ΔE 0.052
- Sky Blue #87CEEB ΔE 0.055
- Robin Egg Blue #8AF1FE ΔE 0.056
Use #A1DDFF 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.