#473740
Closest named color: Onyx (#343A40). oklch(35.8% 0.027 343.7), rgb(71, 55, 64).
Aa
White text reads best on this color (11.12:1).
About this color
#473740 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.034 away. White text reads best on it, at 11.12:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.88:1 |
| White text | 11.12:1 |
Values
| HEX | #473740 |
| RGB | rgb(71, 55, 64) |
| HSL | hsl(326, 13%, 25%) |
| OKLCH | oklch(35.8% 0.027 343.7) |
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 #473740 | 11.12:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #473740 | 1.88:1 | Fails | Lc 8.2 | Not readable |
| #473740 text on white | 11.12:1 | AAA | Lc 95.7 | Preferred for body text |
| #473740 text on black | 1.88:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EB
oklch(93.6% 0.007 340.4)
-
Step 200
200
#DFD6DB
oklch(88.5% 0.012 342.7)
-
Step 300
300
#CBBCC4
oklch(81% 0.02 344.1)
-
Step 400
400
#B099A6
oklch(70.7% 0.033 342.9)
-
Step 500
500
#9C8090
oklch(63.1% 0.041 343.1)
-
Step 600
600
#87697A
oklch(55.6% 0.045 343.7)
-
Step 700
700
#725767
oklch(49% 0.043 342.5)
-
Step 800
800
#5D4854
oklch(42.8% 0.034 343.4)
-
Step 900
900 (this color)
#473740
oklch(35.8% 0.027 343.7)
-
Step 950
950
#2D2328
oklch(27% 0.017 346.8)
#473740 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) | #383A40 | 0.027 |
| Deuteranopia (no green cones) | #3B3C40 | 0.025 |
| Tritanopia (no blue cones) | #49373A | 0.011 |
| Achromatopsia (no color) | #3B3B3B | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #473740
#473740
oklch(35.8% 0.027 343.7)
- #304139
#304139
oklch(35.8% 0.026 164.6)
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 #473740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.035
- Gunmetal #293241 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.062
- Space Cadet #2B2D42 ΔE 0.064
- Charcoal #264653 ΔE 0.064
- Purple Brown #673A3F ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.066
Use #473740 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.