#99AAAE
Closest named color: Cool Steel (#97A7B3). oklch(72.6% 0.02 213.4), rgb(153, 170, 174).
Aa
Black text reads best on this color (8.71:1).
About this color
#99AAAE 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 0.013 away. Black text reads best on it, at 8.71:1.
| Hue family | Neutrals |
| Lightness | medium-light (73%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.71:1 |
| White text | 2.40:1 |
Values
| HEX | #99AAAE |
| RGB | rgb(153, 170, 174) |
| HSL | hsl(191, 11%, 64%) |
| OKLCH | oklch(72.6% 0.02 213.4) |
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 #99AAAE | 2.40:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #99AAAE | 8.71:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #99AAAE text on white | 2.40:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #99AAAE text on black | 8.71:1 | AAA | Lc -54.6 | 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
#D4DADC
oklch(88.4% 0.007 219.6)
-
Step 300
300
#B8C3C5
oklch(80.9% 0.012 209.8)
-
Step 400
400 (this color)
#99AAAE
oklch(72.6% 0.02 213.4)
-
Step 500
500
#798E93
oklch(63.2% 0.025 213.7)
-
Step 600
600
#61787D
oklch(55.6% 0.028 212.4)
-
Step 700
700
#50656A
oklch(49.1% 0.026 213.8)
-
Step 800
800
#425256
oklch(42.6% 0.021 214.6)
-
Step 900
900
#384447
oklch(37.7% 0.016 214.5)
-
Step 950
950
#21282A
oklch(27.1% 0.011 216.9)
#99AAAE 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) | #A7A9AE | 0.019 |
| Deuteranopia (no green cones) | #A3A6AE | 0.017 |
| Tritanopia (no blue cones) | #93ACAB | 0.011 |
| Achromatopsia (no color) | #A7A7A7 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AAAE
#99AAAE
oklch(72.6% 0.02 213.4)
- #B3A29E
#B3A29E
oklch(72.6% 0.021 33.4)
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 #99AAAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.013
- Pewter #96A8A1 ΔE 0.019
- Cool Grey #95A3A6 ΔE 0.021
- Dark Gray #A9A9A9 ΔE 0.022
- Bluegrey #85A3B2 ΔE 0.035
- Bluey Grey #89A0B0 ΔE 0.038
- Cement #A5A391 ΔE 0.040
- French Gray #ADB5BD ΔE 0.045
Use #99AAAE 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.