#A3DEFD
Closest named color: Light Blue (#ADD8E6). oklch(87.1% 0.074 231.6), rgb(163, 222, 253).
Aa
Black text reads best on this color (14.42:1).
About this color
#A3DEFD is a light, moderately saturated blue. In OKLCH its lightness is 87%, its chroma 0.074 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.032 away. Black text reads best on it, at 14.42:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.42:1 |
| White text | 1.45:1 |
Values
| HEX | #A3DEFD |
| RGB | rgb(163, 222, 253) |
| HSL | hsl(201, 96%, 82%) |
| OKLCH | oklch(87.1% 0.074 231.6) |
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 #A3DEFD | 1.45:1 | Fails | Lc -24.6 | Dividers and decoration only |
| Black text on #A3DEFD | 14.42:1 | AAA | Lc 82.1 | Fine for body text |
| #A3DEFD text on white | 1.45:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #A3DEFD text on black | 14.42:1 | AAA | Lc -81.7 | 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
#D8EEF9
oklch(93.6% 0.028 229.2)
-
Step 200
200 (this color)
#A3DEFD
oklch(87.1% 0.074 231.6)
-
Step 300
300
#7ECCF3
oklch(80.9% 0.095 231.3)
-
Step 400
400
#00AFEA
oklch(70.8% 0.144 231.6)
-
Step 500
500
#0096C9
oklch(63.2% 0.128 231.5)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
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
#002B3C
oklch(27.1% 0.054 230.4)
#A3DEFD 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) | #CFDCFF | 0.052 |
| Deuteranopia (no green cones) | #C2D1FD | 0.047 |
| Tritanopia (no blue cones) | #83E7E8 | 0.054 |
| Achromatopsia (no color) | #D6D6D6 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3DEFD
#A3DEFD
oklch(87.1% 0.074 231.6)
- #FDC8A9
#FDC8A9
oklch(87.2% 0.073 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 #A3DEFD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.032
- Powder Blue #B0E0E6 ΔE 0.036
- Baby Blue #A2CFFE ΔE 0.041
- Celeste #A8DADC ΔE 0.044
- Robin's Egg Blue #98EFF9 ΔE 0.048
- Robin Egg Blue #8AF1FE ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.055
- Pale Turquoise #AFEEEE ΔE 0.056
Use #A3DEFD 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.