#A3D6CA
Closest named color: Celeste (#A8DADC). oklch(83.7% 0.055 178.8), rgb(163, 214, 202).
Aa
Black text reads best on this color (13.02:1).
About this color
#A3D6CA is a light, muted teal or cyan. In OKLCH its lightness is 84%, its chroma 0.055 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.026 away. Black text reads best on it, at 13.02:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.02:1 |
| White text | 1.61:1 |
Values
| HEX | #A3D6CA |
| RGB | rgb(163, 214, 202) |
| HSL | hsl(166, 38%, 74%) |
| OKLCH | oklch(83.7% 0.055 178.8) |
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 #A3D6CA | 1.61:1 | Fails | Lc -31.0 | Non-text elements, placeholder text |
| Black text on #A3D6CA | 13.02:1 | AAA | Lc 76.4 | Fine for body text |
| #A3D6CA text on white | 1.61:1 | Fails | Lc 27.4 | Dividers and decoration only |
| #A3D6CA text on black | 13.02:1 | AAA | Lc -75.5 | 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 300.
-
Step 50
50
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEEA
oklch(93.7% 0.017 178.3)
-
Step 200
200
#C4E0D9
oklch(88.4% 0.031 178.8)
-
Step 300
300 (this color)
#A3D6CA
oklch(83.7% 0.055 178.8)
-
Step 400
400
#5CB3A1
oklch(70.7% 0.089 178.4)
-
Step 500
500
#0D9F8A
oklch(63% 0.113 178.7)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#032E27
oklch(27.1% 0.047 179)
#A3D6CA 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) | #D2D0CA | 0.059 |
| Deuteranopia (no green cones) | #C8C9CB | 0.055 |
| Tritanopia (no blue cones) | #95D8D2 | 0.017 |
| Achromatopsia (no color) | #CCCCCC | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3D6CA
#A3D6CA
oklch(83.7% 0.055 178.8)
- #E9BBC9
#E9BBC9
oklch(83.7% 0.056 358.2)
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 #A3D6CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.026
- Tiffany Blue #94D2BD ΔE 0.027
- Light Blue #ADD8E6 ΔE 0.042
- Powder Blue #B0E0E6 ΔE 0.046
- Light Teal #90E4C1 ΔE 0.048
- Ash Gray #BFC8AD ΔE 0.050
- Seafoam Blue #78D1B6 ΔE 0.057
- Pale Teal #82CBB2 ΔE 0.058
Use #A3D6CA 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.