#475B5B
Closest named color: Slate (#516572). oklch(45.5% 0.024 196.3), rgb(71, 91, 91).
Aa
White text reads best on this color (7.20:1).
About this color
#475B5B is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.046 away. White text reads best on it, at 7.20:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #475B5B |
| RGB | rgb(71, 91, 91) |
| HSL | hsl(180, 12%, 32%) |
| OKLCH | oklch(45.5% 0.024 196.3) |
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 #475B5B | 7.20:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #475B5B | 2.91:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #475B5B text on white | 7.20:1 | AAA | Lc 85.0 | Fine for body text |
| #475B5B text on black | 2.91:1 | Fails | Lc -17.0 | Dividers and decoration only |
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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B7C4C3
oklch(81% 0.014 191.3)
-
Step 400
400
#91A5A5
oklch(70.6% 0.022 196.7)
-
Step 500
500
#768F8F
oklch(63.1% 0.028 196.5)
-
Step 600
600
#5E7979
oklch(55.5% 0.031 196.3)
-
Step 700
700
#4D6666
oklch(49% 0.03 196.2)
-
Step 800
800 (this color)
#475B5B
oklch(45.5% 0.024 196.3)
-
Step 900
900
#364545
oklch(37.7% 0.019 196.4)
-
Step 950
950
#202828
oklch(26.9% 0.011 196.5)
#475B5B 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) | #58595B | 0.025 |
| Deuteranopia (no green cones) | #54565B | 0.023 |
| Tritanopia (no blue cones) | #415C5B | 0.008 |
| Achromatopsia (no color) | #575757 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475B5B
#475B5B
oklch(45.5% 0.024 196.3)
- #645152
#645152
oklch(45.5% 0.025 14.6)
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 #475B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.048
- Dusty Grape #545775 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.053
- Petrol #005F6A ΔE 0.054
- Dark Aqua #05696B ΔE 0.058
- Deep Teal #00555A ΔE 0.064
Use #475B5B 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.