#AAC9BF
Closest named color: Ash Gray (#BFC8AD). oklch(81% 0.036 173.9), rgb(170, 201, 191).
Aa
Black text reads best on this color (11.81:1).
About this color
#AAC9BF is a light, muted teal or cyan. In OKLCH its lightness is 81%, its chroma 0.036 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Ash Gray (#BFC8AD), ΔE 0.033 away. Black text reads best on it, at 11.81:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Ash Gray (#BFC8AD) |
| Black text | 11.81:1 |
| White text | 1.77:1 |
Values
| HEX | #AAC9BF |
| RGB | rgb(170, 201, 191) |
| HSL | hsl(161, 22%, 73%) |
| OKLCH | oklch(81% 0.036 173.9) |
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 #AAC9BF | 1.77:1 | Fails | Lc -36.7 | Non-text elements, placeholder text |
| Black text on #AAC9BF | 11.81:1 | AAA | Lc 71.1 | Content text, not long reading |
| #AAC9BF text on white | 1.77:1 | Fails | Lc 32.7 | Non-text elements, placeholder text |
| #AAC9BF text on black | 11.81:1 | AAA | Lc -69.9 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300 (this color)
#AAC9BF
oklch(81% 0.036 173.9)
-
Step 400
400
#7BAD9E
oklch(70.8% 0.058 174)
-
Step 500
500
#569886
oklch(63% 0.074 174.3)
-
Step 600
600
#388370
oklch(55.7% 0.081 174.1)
-
Step 700
700
#2A6E5D
oklch(49% 0.074 173.9)
-
Step 800
800
#245A4C
oklch(42.7% 0.062 173.6)
-
Step 900
900
#234A3F
oklch(37.7% 0.049 173.1)
-
Step 950
950
#152B25
oklch(26.9% 0.03 174.4)
#AAC9BF 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) | #C7C5BF | 0.038 |
| Deuteranopia (no green cones) | #C1C0C0 | 0.037 |
| Tritanopia (no blue cones) | #A3CAC6 | 0.011 |
| Achromatopsia (no color) | #C2C2C2 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC9BF
#AAC9BF
oklch(81% 0.036 173.9)
- #D5B8C2
#D5B8C2
oklch(81% 0.036 355.1)
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 #AAC9BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ash Gray #BFC8AD ΔE 0.033
- Tiffany Blue #94D2BD ΔE 0.035
- Silver #C0C0C0 ΔE 0.036
- Cloudy Blue #ACC2D9 ΔE 0.047
- Celeste #A8DADC ΔE 0.050
- Pale Teal #82CBB2 ΔE 0.051
- Light Steel Blue #B0C4DE ΔE 0.052
- Light Cornflower Blue #98C1D9 ΔE 0.053
Use #AAC9BF 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.