#A3D1DF
Closest named color: Light Blue (#ADD8E6). oklch(83.3% 0.052 218.4), rgb(163, 209, 223).
Aa
Black text reads best on this color (12.74:1).
About this color
#A3D1DF is a light, muted teal or cyan. In OKLCH its lightness is 83%, its chroma 0.052 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.024 away. Black text reads best on it, at 12.74:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 12.74:1 |
| White text | 1.64:1 |
Values
| HEX | #A3D1DF |
| RGB | rgb(163, 209, 223) |
| HSL | hsl(194, 48%, 76%) |
| OKLCH | oklch(83.3% 0.052 218.4) |
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 #A3D1DF | 1.64:1 | Fails | Lc -32.3 | Non-text elements, placeholder text |
| Black text on #A3D1DF | 12.74:1 | AAA | Lc 75.1 | Fine for body text |
| #A3D1DF text on white | 1.64:1 | Fails | Lc 28.7 | Dividers and decoration only |
| #A3D1DF text on black | 12.74:1 | AAA | Lc -74.2 | Content text, not long reading |
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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#DFECF1
oklch(93.5% 0.015 222.7)
-
Step 200
200
#C5DEE6
oklch(88.5% 0.029 219)
-
Step 300
300 (this color)
#A3D1DF
oklch(83.3% 0.052 218.4)
-
Step 400
400
#60ADC3
oklch(70.6% 0.082 218.5)
-
Step 500
500
#2198B4
oklch(63% 0.106 218.4)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#062B35
oklch(26.9% 0.044 220.1)
#A3D1DF 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) | #C8CEE0 | 0.046 |
| Deuteranopia (no green cones) | #BEC6DF | 0.042 |
| Tritanopia (no blue cones) | #90D6D5 | 0.031 |
| Achromatopsia (no color) | #C9C9C9 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3D1DF
#A3D1DF
oklch(83.3% 0.052 218.4)
- #E7BDB0
#E7BDB0
oklch(83.2% 0.052 37.9)
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 #A3D1DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.024
- Celeste #A8DADC ΔE 0.027
- Light Blue Grey #B7C9E2 ΔE 0.032
- Sky Blue #87CEEB ΔE 0.036
- Light Steel Blue #B0C4DE ΔE 0.036
- Cloudy Blue #ACC2D9 ΔE 0.039
- Powder Blue #B0E0E6 ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.046
Use #A3D1DF 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.