#909FA0
Closest named color: Cool Grey (#95A3A6). oklch(69.1% 0.017 201.6), rgb(144, 159, 160).
Aa
Black text reads best on this color (7.65:1).
About this color
#909FA0 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 0.015 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 | #909FA0 |
| RGB | rgb(144, 159, 160) |
| HSL | hsl(184, 8%, 60%) |
| OKLCH | oklch(69.1% 0.017 201.6) |
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 #909FA0 | 2.74:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #909FA0 | 7.65:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #909FA0 text on white | 2.74:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #909FA0 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
#B9C3C3
oklch(80.9% 0.011 196.9)
-
Step 400
400 (this color)
#909FA0
oklch(69.1% 0.017 201.6)
-
Step 500
500
#7B8E8F
oklch(63.2% 0.022 200.5)
-
Step 600
600
#647879
oklch(55.7% 0.024 200.2)
-
Step 700
700
#526566
oklch(49.1% 0.023 200.4)
-
Step 800
800
#445253
oklch(42.7% 0.018 201.8)
-
Step 900
900
#394445
oklch(37.7% 0.014 203.3)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#909FA0 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) | #9D9DA0 | 0.018 |
| Deuteranopia (no green cones) | #999BA0 | 0.016 |
| Tritanopia (no blue cones) | #8CA09F | 0.006 |
| Achromatopsia (no color) | #9C9C9C | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909FA0
#909FA0
oklch(69.1% 0.017 201.6)
- #A69897
#A69897
oklch(69.2% 0.017 22.5)
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 #909FA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Grey #95A3A6 ΔE 0.015
- Bluey Grey #89A0B0 ΔE 0.024
- Bluegrey #85A3B2 ΔE 0.027
- Pewter #96A8A1 ΔE 0.027
- Cool Gray #8D99AE ΔE 0.031
- Cool Steel #97A7B3 ΔE 0.033
- Cement #A5A391 ΔE 0.039
- Greyblue #77A1B5 ΔE 0.040
Use #909FA0 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.