#909FA1
Closest named color: Cool Grey (#95A3A6). oklch(69.1% 0.017 206.4), rgb(144, 159, 161).
Aa
Black text reads best on this color (7.65:1).
About this color
#909FA1 is a medium-light close to neutral grey. In OKLCH its lightness is 69%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Cool Grey (#95A3A6), ΔE 0.014 away. Black text reads best on it, at 7.65:1.
| Hue family | Neutrals |
| Lightness | medium-light (69%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Cool Grey (#95A3A6) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #909FA1 |
| RGB | rgb(144, 159, 161) |
| HSL | hsl(187, 8%, 60%) |
| OKLCH | oklch(69.1% 0.017 206.4) |
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 #909FA1 | 2.74:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #909FA1 | 7.65:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #909FA1 text on white | 2.74:1 | Fails | Lc 53.0 | Large or bold text, headings |
| #909FA1 text on black | 7.65:1 | AAA | Lc -48.8 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D5DADB
oklch(88.5% 0.006 211)
-
Step 300
300
#B9C3C4
oklch(81% 0.011 204.1)
-
Step 400
400 (this color)
#909FA1
oklch(69.1% 0.017 206.4)
-
Step 500
500
#7B8E90
oklch(63.2% 0.022 204.3)
-
Step 600
600
#63787A
oklch(55.7% 0.025 203.6)
-
Step 700
700
#526567
oklch(49.2% 0.023 204.3)
-
Step 800
800
#445254
oklch(42.7% 0.018 207)
-
Step 900
900
#394445
oklch(37.7% 0.014 203.3)
-
Step 950
950
#212829
oklch(27% 0.01 207.1)
#909FA1 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) | #9C9EA1 | 0.016 |
| Deuteranopia (no green cones) | #999BA1 | 0.016 |
| Tritanopia (no blue cones) | #8BA0A0 | 0.007 |
| Achromatopsia (no color) | #9C9C9C | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909FA1
#909FA1
oklch(69.1% 0.017 206.4)
- #A69896
#A69896
oklch(69.1% 0.017 27.3)
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 #909FA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Grey #95A3A6 ΔE 0.014
- Bluey Grey #89A0B0 ΔE 0.022
- Bluegrey #85A3B2 ΔE 0.026
- Pewter #96A8A1 ΔE 0.028
- Cool Gray #8D99AE ΔE 0.030
- Cool Steel #97A7B3 ΔE 0.032
- Greyblue #77A1B5 ΔE 0.039
- Cement #A5A391 ΔE 0.040
Use #909FA1 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.