#A3DEE5
Closest named color: Celeste (#A8DADC). oklch(86.3% 0.061 205.3), rgb(163, 222, 229).
Aa
Black text reads best on this color (14.13:1).
About this color
#A3DEE5 is a light, muted teal or cyan. In OKLCH its lightness is 86%, its chroma 0.061 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.014 away. Black text reads best on it, at 14.13:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.13:1 |
| White text | 1.48:1 |
Values
| HEX | #A3DEE5 |
| RGB | rgb(163, 222, 229) |
| HSL | hsl(186, 56%, 77%) |
| OKLCH | oklch(86.3% 0.061 205.3) |
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 #A3DEE5 | 1.48:1 | Fails | Lc -25.9 | Dividers and decoration only |
| Black text on #A3DEE5 | 14.13:1 | AAA | Lc 80.9 | Fine for body text |
| #A3DEE5 text on white | 1.48:1 | Fails | Lc 22.8 | Dividers and decoration only |
| #A3DEE5 text on black | 14.13:1 | AAA | Lc -80.4 | 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
#EEF8F9
oklch(97.2% 0.011 204.1)
-
Step 100
100
#D9EFF1
oklch(93.7% 0.023 203.4)
-
Step 200
200 (this color)
#A3DEE5
oklch(86.3% 0.061 205.3)
-
Step 300
300
#81D0D9
oklch(81% 0.079 205)
-
Step 400
400
#00B5C4
oklch(70.6% 0.121 205.3)
-
Step 500
500
#009CA9
oklch(63.2% 0.108 205.2)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#A3DEE5 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) | #D5D9E6 | 0.061 |
| Deuteranopia (no green cones) | #C9D0E5 | 0.056 |
| Tritanopia (no blue cones) | #8CE3E0 | 0.028 |
| Achromatopsia (no color) | #D4D4D4 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3DEE5
#A3DEE5
oklch(86.3% 0.061 205.3)
- #F8C3BE
#F8C3BE
oklch(86.3% 0.061 24.6)
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 #A3DEE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.014
- Powder Blue #B0E0E6 ΔE 0.016
- Light Blue #ADD8E6 ΔE 0.019
- Robin's Egg Blue #98EFF9 ΔE 0.045
- Pale Turquoise #AFEEEE ΔE 0.045
- Robin Egg Blue #8AF1FE ΔE 0.053
- Cadet Gray #CED4DA ΔE 0.054
- Robin's Egg #6DEDFD ΔE 0.057
Use #A3DEE5 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.