#4B374F
Closest named color: Charcoal Grey (#3C4142). oklch(36.9% 0.048 320.7), rgb(75, 55, 79).
Aa
White text reads best on this color (10.72:1).
About this color
#4B374F is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.048 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.051 away. White text reads best on it, at 10.72:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.95:1 |
| White text | 10.72:1 |
Values
| HEX | #4B374F |
| RGB | rgb(75, 55, 79) |
| HSL | hsl(290, 18%, 26%) |
| OKLCH | oklch(36.9% 0.048 320.7) |
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 #4B374F | 10.72:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #4B374F | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #4B374F text on white | 10.72:1 | AAA | Lc 94.8 | Preferred for body text |
| #4B374F text on black | 1.95:1 | Fails | Lc -7.8 | 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
#EDE8EE
oklch(93.7% 0.01 320.5)
-
Step 200
200
#DFD5E1
oklch(88.5% 0.019 320.6)
-
Step 300
300
#CCB9CF
oklch(80.8% 0.037 321.6)
-
Step 400
400
#B195B7
oklch(70.6% 0.058 320.3)
-
Step 500
500
#9E7BA5
oklch(63.1% 0.074 320.7)
-
Step 600
600
#896490
oklch(55.7% 0.079 321)
-
Step 700
700
#74527B
oklch(49% 0.076 320.6)
-
Step 800
800
#5E4464
oklch(42.7% 0.061 319.9)
-
Step 900
900 (this color)
#4B374F
oklch(36.9% 0.048 320.7)
-
Step 950
950
#2D2230
oklch(27.1% 0.03 318.9)
#4B374F 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) | #343C50 | 0.041 |
| Deuteranopia (no green cones) | #393F4E | 0.038 |
| Tritanopia (no blue cones) | #4C3940 | 0.029 |
| Achromatopsia (no color) | #3E3E3E | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B374F
#4B374F
oklch(36.9% 0.048 320.7)
- #31462E
#31462E
oklch(36.9% 0.048 141.5)
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 #4B374F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.051
- Onyx #343A40 ΔE 0.051
- Purple Brown #673A3F ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.064
- Charcoal #264653 ΔE 0.068
- Gunmetal #293241 ΔE 0.068
- Dark Blue Grey #1F3B4D ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.071
Use #4B374F 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.