#99ACA9
Closest named color: Pewter (#96A8A1). oklch(72.9% 0.022 185.3), rgb(153, 172, 169).
Aa
Black text reads best on this color (8.82:1).
About this color
#99ACA9 is a medium-light close to neutral grey. In OKLCH its lightness is 73%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Pewter (#96A8A1), ΔE 0.015 away. Black text reads best on it, at 8.82:1.
| Hue family | Neutrals |
| Lightness | medium-light (73%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Pewter (#96A8A1) |
| Black text | 8.82:1 |
| White text | 2.37:1 |
Values
| HEX | #99ACA9 |
| RGB | rgb(153, 172, 169) |
| HSL | hsl(171, 10%, 64%) |
| OKLCH | oklch(72.9% 0.022 185.3) |
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 #99ACA9 | 2.37:1 | Fails | Lc -51.9 | Large or bold text, headings |
| Black text on #99ACA9 | 8.82:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #99ACA9 text on white | 2.37:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #99ACA9 text on black | 8.82:1 | AAA | Lc -55.1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBDA
oklch(88.6% 0.008 186.9)
-
Step 300
300
#B8C4C2
oklch(81% 0.013 185)
-
Step 400
400 (this color)
#99ACA9
oklch(72.9% 0.022 185.3)
-
Step 500
500
#778F8C
oklch(63% 0.028 187.2)
-
Step 600
600
#607976
oklch(55.5% 0.029 187.4)
-
Step 700
700
#4F6663
oklch(49.1% 0.028 186.5)
-
Step 800
800
#415351
oklch(42.6% 0.023 188)
-
Step 900
900
#374543
oklch(37.7% 0.018 185.8)
-
Step 950
950
#202827
oklch(26.9% 0.011 187.3)
#99ACA9 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) | #AAAAA9 | 0.023 |
| Deuteranopia (no green cones) | #A6A7A9 | 0.021 |
| Tritanopia (no blue cones) | #94ADAB | 0.007 |
| Achromatopsia (no color) | #A8A8A8 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ACA9
#99ACA9
oklch(72.9% 0.022 185.3)
- #B4A2A5
#B4A2A5
oklch(72.9% 0.021 6.2)
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 #99ACA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pewter #96A8A1 ΔE 0.015
- Dark Gray #A9A9A9 ΔE 0.022
- Cool Steel #97A7B3 ΔE 0.024
- Cool Grey #95A3A6 ΔE 0.026
- Cement #A5A391 ΔE 0.036
- Bluegrey #85A3B2 ΔE 0.042
- French Gray #ADB5BD ΔE 0.045
- Bluey Grey #89A0B0 ΔE 0.045
Use #99ACA9 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.