#475A64
Closest named color: YInMn Blue (#415A77). oklch(45.6% 0.028 231.1), rgb(71, 90, 100).
Aa
White text reads best on this color (7.20:1).
About this color
#475A64 is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.20:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #475A64 |
| RGB | rgb(71, 90, 100) |
| HSL | hsl(201, 17%, 34%) |
| OKLCH | oklch(45.6% 0.028 231.1) |
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 #475A64 | 7.20:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #475A64 | 2.91:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #475A64 text on white | 7.20:1 | AAA | Lc 85.0 | Fine for body text |
| #475A64 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B6C3CA
oklch(80.9% 0.017 231)
-
Step 400
400
#91A4AE
oklch(70.7% 0.026 230.6)
-
Step 500
500
#758E9B
oklch(63.2% 0.035 230.6)
-
Step 600
600
#5E7885
oklch(55.7% 0.036 229.8)
-
Step 700
700
#4D6571
oklch(49.2% 0.034 229.9)
-
Step 800
800 (this color)
#475A64
oklch(45.6% 0.028 231.1)
-
Step 900
900
#36444B
oklch(37.7% 0.022 229.7)
-
Step 950
950
#20282C
oklch(27.1% 0.014 229.5)
#475A64 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) | #555965 | 0.021 |
| Deuteranopia (no green cones) | #515664 | 0.018 |
| Tritanopia (no blue cones) | #3E5D5D | 0.021 |
| Achromatopsia (no color) | #575757 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475A64
#475A64
oklch(45.6% 0.028 231.1)
- #645349
#645349
oklch(45.6% 0.028 52.2)
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 #475A64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.038
- Slate #516572 ΔE 0.040
- Petrol #005F6A ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.057
- Dark Green Blue #1F6357 ΔE 0.057
- Dusk #4E5481 ΔE 0.058
- Dark Aqua #05696B ΔE 0.060
Use #475A64 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.