#4F374B
Closest named color: Charcoal Grey (#3C4142). oklch(37.2% 0.046 332.4), rgb(79, 55, 75).
Aa
White text reads best on this color (10.60:1).
About this color
#4F374B is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.046 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.050 away. White text reads best on it, at 10.60:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.046) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.98:1 |
| White text | 10.60:1 |
Values
| HEX | #4F374B |
| RGB | rgb(79, 55, 75) |
| HSL | hsl(310, 18%, 26%) |
| OKLCH | oklch(37.2% 0.046 332.4) |
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 #4F374B | 10.60:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #4F374B | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #4F374B text on white | 10.60:1 | AAA | Lc 94.5 | Preferred for body text |
| #4F374B text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EEE7ED
oklch(93.5% 0.011 330.2)
-
Step 200
200
#E1D5DF
oklch(88.6% 0.019 331.1)
-
Step 300
300
#CFB9CB
oklch(81% 0.035 331.9)
-
Step 400
400
#B694B0
oklch(70.6% 0.056 332.2)
-
Step 500
500
#A47A9C
oklch(63.2% 0.07 333.2)
-
Step 600
600
#8E6287
oklch(55.5% 0.077 332.3)
-
Step 700
700
#795173
oklch(49.1% 0.073 332)
-
Step 800
800
#63435D
oklch(42.8% 0.059 333.4)
-
Step 900
900 (this color)
#4F374B
oklch(37.2% 0.046 332.4)
-
Step 950
950
#2F212D
oklch(27% 0.03 331.3)
#4F374B 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) | #373D4C | 0.044 |
| Deuteranopia (no green cones) | #3C404A | 0.042 |
| Tritanopia (no blue cones) | #51383E | 0.024 |
| Achromatopsia (no color) | #3F3F3F | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F374B
#4F374B
oklch(37.2% 0.046 332.4)
- #2D4734
#2D4734
oklch(37.1% 0.046 152.2)
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 #4F374B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.050
- Purple Brown #673A3F ΔE 0.054
- Onyx #343A40 ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.070
- Charcoal #264653 ΔE 0.072
- Gunmetal #293241 ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.077
Use #4F374B 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.