#A9DCE3
Closest named color: Celeste (#A8DADC). oklch(86.1% 0.053 206.6), rgb(169, 220, 227).
Aa
Black text reads best on this color (14.03:1).
About this color
#A9DCE3 is a light, muted teal or cyan. In OKLCH its lightness is 86%, its chroma 0.053 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.010 away. Black text reads best on it, at 14.03:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.03:1 |
| White text | 1.49:1 |
Values
| HEX | #A9DCE3 |
| RGB | rgb(169, 220, 227) |
| HSL | hsl(187, 51%, 78%) |
| OKLCH | oklch(86.1% 0.053 206.6) |
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 #A9DCE3 | 1.49:1 | Fails | Lc -26.4 | Dividers and decoration only |
| Black text on #A9DCE3 | 14.03:1 | AAA | Lc 80.5 | Fine for body text |
| #A9DCE3 text on white | 1.49:1 | Fails | Lc 23.3 | Dividers and decoration only |
| #A9DCE3 text on black | 14.03:1 | AAA | Lc -80.0 | 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
#DBEEF0
oklch(93.6% 0.02 204.4)
-
Step 200
200 (this color)
#A9DCE3
oklch(86.1% 0.053 206.6)
-
Step 300
300
#8BCED7
oklch(81% 0.069 206.5)
-
Step 400
400
#31B4C3
oklch(70.8% 0.11 206.5)
-
Step 500
500
#009BAA
oklch(63% 0.108 206.9)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#A9DCE3 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) | #D4D8E4 | 0.053 |
| Deuteranopia (no green cones) | #C9D0E3 | 0.048 |
| Tritanopia (no blue cones) | #96E0DE | 0.025 |
| Achromatopsia (no color) | #D3D3D3 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9DCE3
#A9DCE3
oklch(86.1% 0.053 206.6)
- #F3C5BF
#F3C5BF
oklch(86.2% 0.053 26.9)
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 #A9DCE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.010
- Light Blue #ADD8E6 ΔE 0.013
- Powder Blue #B0E0E6 ΔE 0.014
- Cadet Gray #CED4DA ΔE 0.046
- Pale Turquoise #AFEEEE ΔE 0.048
- Robin's Egg Blue #98EFF9 ΔE 0.050
- Light Blue Grey #B7C9E2 ΔE 0.052
- Light Gray #D3D3D3 ΔE 0.054
Use #A9DCE3 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.