#475451
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43.4% 0.017 180), rgb(71, 84, 81).
Aa
White text reads best on this color (7.91:1).
About this color
#475451 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.038 away. White text reads best on it, at 7.91:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.65:1 |
| White text | 7.91:1 |
Values
| HEX | #475451 |
| RGB | rgb(71, 84, 81) |
| HSL | hsl(166, 8%, 30%) |
| OKLCH | oklch(43.4% 0.017 180) |
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 #475451 | 7.91:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #475451 | 2.65:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #475451 text on white | 7.91:1 | AAA | Lc 87.5 | Fine for body text |
| #475451 text on black | 2.65:1 | Fails | Lc -14.7 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D5DAD9
oklch(88.4% 0.006 183)
-
Step 300
300
#BAC3C1
oklch(81% 0.01 181.3)
-
Step 400
400
#96A4A1
oklch(70.7% 0.016 181.6)
-
Step 500
500
#7D8E8A
oklch(63.2% 0.02 179.9)
-
Step 600
600
#667874
oklch(55.7% 0.022 180.5)
-
Step 700
700
#546561
oklch(49.1% 0.022 179.5)
-
Step 800
800 (this color)
#475451
oklch(43.4% 0.017 180)
-
Step 900
900
#3A4442
oklch(37.7% 0.014 182.2)
-
Step 950
950
#222826
oklch(27% 0.009 173.5)
#475451 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) | #535251 | 0.019 |
| Deuteranopia (no green cones) | #505051 | 0.018 |
| Tritanopia (no blue cones) | #445453 | 0.005 |
| Achromatopsia (no color) | #515151 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475451
#475451
oklch(43.4% 0.017 180)
- #594D50
#594D50
oklch(43.3% 0.017 0.9)
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 #475451, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.057
- Deep Teal #00555A ΔE 0.059
- YInMn Blue #415A77 ΔE 0.060
- Petrol #005F6A ΔE 0.063
- Dusty Grape #545775 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.064
- Dark Blue Green #005249 ΔE 0.067
Use #475451 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.