#A9DDFA
Closest named color: Light Blue (#ADD8E6). oklch(87.1% 0.067 232.9), rgb(169, 221, 250).
Aa
Black text reads best on this color (14.41:1).
About this color
#A9DDFA is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.067 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.027 away. Black text reads best on it, at 14.41:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.41:1 |
| White text | 1.45:1 |
Values
| HEX | #A9DDFA |
| RGB | rgb(169, 221, 250) |
| HSL | hsl(201, 89%, 82%) |
| OKLCH | oklch(87.1% 0.067 232.9) |
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 #A9DDFA | 1.45:1 | Fails | Lc -24.7 | Dividers and decoration only |
| Black text on #A9DDFA | 14.41:1 | AAA | Lc 82.0 | Fine for body text |
| #A9DDFA text on white | 1.45:1 | Fails | Lc 21.7 | Dividers and decoration only |
| #A9DDFA text on black | 14.41:1 | AAA | Lc -81.6 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DAEDF8
oklch(93.5% 0.025 233)
-
Step 200
200 (this color)
#A9DDFA
oklch(87.1% 0.067 232.9)
-
Step 300
300
#87CBEF
oklch(81% 0.085 232.4)
-
Step 400
400
#24AEE8
oklch(70.8% 0.138 232.9)
-
Step 500
500
#0095CB
oklch(63% 0.131 233.2)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002A3D
oklch(26.9% 0.056 233.8)
#A9DDFA 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) | #CFDBFC | 0.046 |
| Deuteranopia (no green cones) | #C4D2FA | 0.041 |
| Tritanopia (no blue cones) | #8EE5E6 | 0.050 |
| Achromatopsia (no color) | #D6D6D6 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9DDFA
#A9DDFA
oklch(87.1% 0.067 232.9)
- #F9C9AC
#F9C9AC
oklch(87.1% 0.067 52.7)
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 #A9DDFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.027
- Powder Blue #B0E0E6 ΔE 0.032
- Celeste #A8DADC ΔE 0.041
- Baby Blue #A2CFFE ΔE 0.041
- Robin's Egg Blue #98EFF9 ΔE 0.050
- Light Blue Grey #B7C9E2 ΔE 0.053
- Pale Turquoise #AFEEEE ΔE 0.055
- Robin Egg Blue #8AF1FE ΔE 0.057
Use #A9DDFA 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.