#A9DADC
Closest named color: Celeste (#A8DADC). oklch(85.5% 0.051 199.4), rgb(169, 218, 220).
Aa
Black text reads best on this color (13.74:1).
About this color
#A9DADC is a light, muted teal or cyan. In OKLCH its lightness is 85%, its chroma 0.051 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.001 away. Black text reads best on it, at 13.74:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.74:1 |
| White text | 1.52:1 |
Values
| HEX | #A9DADC |
| RGB | rgb(169, 218, 220) |
| HSL | hsl(182, 42%, 76%) |
| OKLCH | oklch(85.5% 0.051 199.4) |
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 #A9DADC | 1.52:1 | Fails | Lc -27.7 | Dividers and decoration only |
| Black text on #A9DADC | 13.74:1 | AAA | Lc 79.3 | Fine for body text |
| #A9DADC text on white | 1.52:1 | Fails | Lc 24.4 | Dividers and decoration only |
| #A9DADC text on black | 13.74:1 | AAA | Lc -78.7 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DCEEEF
oklch(93.6% 0.019 200.9)
-
Step 200
200 (this color)
#A9DADC
oklch(85.5% 0.051 199.4)
-
Step 300
300
#8ECED1
oklch(80.9% 0.065 199.7)
-
Step 400
400
#3BB4B9
oklch(70.7% 0.104 199.1)
-
Step 500
500
#009DA2
oklch(63.2% 0.107 198.8)
-
Step 600
600
#008488
oklch(55.7% 0.095 198.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#A9DADC 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) | #D3D5DC | 0.052 |
| Deuteranopia (no green cones) | #C9CEDC | 0.048 |
| Tritanopia (no blue cones) | #99DEDA | 0.020 |
| Achromatopsia (no color) | #D1D1D1 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9DADC
#A9DADC
oklch(85.5% 0.051 199.4)
- #EFC3C2
#EFC3C2
oklch(85.5% 0.05 19.7)
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 #A9DADC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.001
- Light Blue #ADD8E6 ΔE 0.018
- Powder Blue #B0E0E6 ΔE 0.021
- Cadet Gray #CED4DA ΔE 0.046
- Light Blue Grey #B7C9E2 ΔE 0.051
- Light Gray #D3D3D3 ΔE 0.052
- Tiffany Blue #94D2BD ΔE 0.052
- Pale Turquoise #AFEEEE ΔE 0.054
Use #A9DADC 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.