#A0AACE
Closest named color: Cool Steel (#97A7B3). oklch(74.2% 0.053 272.9), rgb(160, 170, 206).
Aa
Black text reads best on this color (9.13:1).
About this color
#A0AACE is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.053 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.042 away. Black text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.13:1 |
| White text | 2.29:1 |
Values
| HEX | #A0AACE |
| RGB | rgb(160, 170, 206) |
| HSL | hsl(227, 32%, 72%) |
| OKLCH | oklch(74.2% 0.053 272.9) |
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 #A0AACE | 2.29:1 | Fails | Lc -50.2 | Large or bold text, headings |
| Black text on #A0AACE | 9.13:1 | AAA | Lc 58.6 | Large or bold text, headings |
| #A0AACE text on white | 2.29:1 | Fails | Lc 45.3 | Large or bold text, headings |
| #A0AACE text on black | 9.13:1 | AAA | Lc -56.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D5D9E6
oklch(88.6% 0.018 272.3)
-
Step 300
300
#B9C0D7
oklch(81% 0.033 272.2)
-
Step 400
400 (this color)
#A0AACE
oklch(74.2% 0.053 272.9)
-
Step 500
500
#7B87B3
oklch(63% 0.068 272.5)
-
Step 600
600
#65709F
oklch(55.5% 0.074 273.6)
-
Step 700
700
#545E88
oklch(49.1% 0.069 273.4)
-
Step 800
800
#444D6E
oklch(42.7% 0.056 272.1)
-
Step 900
900
#3A4059
oklch(37.7% 0.044 273.7)
-
Step 950
950
#222634
oklch(27.1% 0.027 272.1)
#A0AACE 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) | #A0ADD0 | 0.008 |
| Deuteranopia (no green cones) | #9CA9CD | 0.006 |
| Tritanopia (no blue cones) | #95B1B6 | 0.048 |
| Achromatopsia (no color) | #ABABAB | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0AACE
#A0AACE
oklch(74.2% 0.053 272.9)
- #B7AB86
#B7AB86
oklch(74.2% 0.052 92.2)
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 #A0AACE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.042
- Light Grey Blue #9DBCD4 ΔE 0.047
- French Gray #ADB5BD ΔE 0.049
- Dark Gray #A9A9A9 ΔE 0.054
- Bluegrey #85A3B2 ΔE 0.058
- Bluey Grey #89A0B0 ΔE 0.058
- Light Cornflower Blue #98C1D9 ΔE 0.059
- Cool Grey #95A3A6 ΔE 0.060
Use #A0AACE 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.