#475155
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.8% 0.014 223.8), rgb(71, 81, 85).
Aa
White text reads best on this color (8.15:1).
About this color
#475155 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.036 away. White text reads best on it, at 8.15:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #475155 |
| RGB | rgb(71, 81, 85) |
| HSL | hsl(197, 9%, 31%) |
| OKLCH | oklch(42.8% 0.014 223.8) |
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 #475155 | 8.15:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #475155 | 2.57:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #475155 text on white | 8.15:1 | AAA | Lc 88.2 | Fine for body text |
| #475155 text on black | 2.57:1 | Fails | Lc -13.9 | Not readable |
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 800.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6DADB
oklch(88.6% 0.005 214.3)
-
Step 300
300
#BBC2C5
oklch(80.9% 0.009 225.1)
-
Step 400
400
#98A3A7
oklch(70.8% 0.014 221.5)
-
Step 500
500
#7F8C91
oklch(63.1% 0.017 222.8)
-
Step 600
600
#68767B
oklch(55.6% 0.018 221.3)
-
Step 700
700
#576368
oklch(49.1% 0.017 224.8)
-
Step 800
800 (this color)
#475155
oklch(42.8% 0.014 223.8)
-
Step 900
900
#3B4346
oklch(37.7% 0.012 222.3)
-
Step 950
950
#232729
oklch(27% 0.007 229.1)
#475155 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) | #4F5055 | 0.012 |
| Deuteranopia (no green cones) | #4D4F55 | 0.011 |
| Tritanopia (no blue cones) | #435252 | 0.009 |
| Achromatopsia (no color) | #4F4F4F | 0.014 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #475155, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.036
- YInMn Blue #415A77 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.057
- Dusty Grape #545775 ΔE 0.057
- Dark Grey Blue #29465B ΔE 0.059
- Deep Teal #00555A ΔE 0.059
- Charcoal #264653 ΔE 0.060
- Petrol #005F6A ΔE 0.065
Use #475155 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.