#99AAAD
Closest named color: Cool Steel (#97A7B3). oklch(72.6% 0.02 209.4), rgb(153, 170, 173).
Aa
Black text reads best on this color (8.70:1).
About this color
#99AAAD is a medium-light close to neutral grey. In OKLCH its lightness is 73%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Cool Steel (#97A7B3), ΔE 0.014 away. Black text reads best on it, at 8.70:1.
| Hue family | Neutrals |
| Lightness | medium-light (73%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.70:1 |
| White text | 2.41:1 |
Values
| HEX | #99AAAD |
| RGB | rgb(153, 170, 173) |
| HSL | hsl(189, 11%, 64%) |
| OKLCH | oklch(72.6% 0.02 209.4) |
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 #99AAAD | 2.41:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #99AAAD | 8.70:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #99AAAD text on white | 2.41:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #99AAAD text on black | 8.70:1 | AAA | Lc -54.5 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADB
oklch(88.4% 0.007 208.8)
-
Step 300
300
#B8C3C5
oklch(80.9% 0.012 209.8)
-
Step 400
400 (this color)
#99AAAD
oklch(72.6% 0.02 209.4)
-
Step 500
500
#798E92
oklch(63.1% 0.025 210.4)
-
Step 600
600
#61787C
oklch(55.6% 0.028 209.3)
-
Step 700
700
#506569
oklch(49.1% 0.026 210.5)
-
Step 800
800
#425255
oklch(42.6% 0.021 210.3)
-
Step 900
900
#384446
oklch(37.7% 0.016 208.8)
-
Step 950
950
#212829
oklch(27% 0.01 207.1)
#99AAAD 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) | #A7A8AD | 0.019 |
| Deuteranopia (no green cones) | #A3A6AD | 0.017 |
| Tritanopia (no blue cones) | #94ACAB | 0.009 |
| Achromatopsia (no color) | #A7A7A7 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AAAD
#99AAAD
oklch(72.6% 0.02 209.4)
- #B2A29F
#B2A29F
oklch(72.5% 0.019 30.3)
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 #99AAAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.014
- Pewter #96A8A1 ΔE 0.018
- Cool Grey #95A3A6 ΔE 0.021
- Dark Gray #A9A9A9 ΔE 0.022
- Bluegrey #85A3B2 ΔE 0.036
- Bluey Grey #89A0B0 ΔE 0.038
- Cement #A5A391 ΔE 0.039
- French Gray #ADB5BD ΔE 0.045
Use #99AAAD 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.