#4B437F
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.098 287.6), rgb(75, 67, 127).
Aa
White text reads best on this color (8.71:1).
About this color
#4B437F is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.098 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.028 away. White text reads best on it, at 8.71:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #4B437F |
| RGB | rgb(75, 67, 127) |
| HSL | hsl(248, 31%, 38%) |
| OKLCH | oklch(42.1% 0.098 287.6) |
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 #4B437F | 8.71:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #4B437F | 2.40:1 | Fails | Lc 14.2 | Not readable |
| #4B437F text on white | 8.71:1 | AAA | Lc 89.8 | Fine for body text |
| #4B437F text on black | 2.40:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EE
oklch(88.4% 0.033 287.6)
-
Step 300
300
#BEBCE4
oklch(81% 0.056 287.4)
-
Step 400
400
#9D98D7
oklch(70.7% 0.091 287.5)
-
Step 500
500
#867DCC
oklch(63.1% 0.117 287.8)
-
Step 600
600
#7065B9
oklch(55.6% 0.127 287.5)
-
Step 700
700
#5E549F
oklch(49.2% 0.117 287.4)
-
Step 800
800 (this color)
#4B437F
oklch(42.1% 0.098 287.6)
-
Step 900
900
#403A67
oklch(37.6% 0.076 288.3)
-
Step 950
950
#25223D
oklch(26.9% 0.05 287.7)
#4B437F 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) | #2D4D81 | 0.046 |
| Deuteranopia (no green cones) | #2D497E | 0.044 |
| Tritanopia (no blue cones) | #3D4F5B | 0.081 |
| Achromatopsia (no color) | #4B4B4B | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B437F
#4B437F
oklch(42.1% 0.098 287.6)
- #535000
#535000
oklch(42% 0.09 107.2)
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 #4B437F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.028
- Blueberry #464196 ΔE 0.040
- Twilight #4E518B ΔE 0.041
- Dusk #4E5481 ΔE 0.049
- Cobalt #1E488F ΔE 0.060
- Dusk Blue #26538D ΔE 0.061
- Light Navy #155084 ΔE 0.066
- Dusty Grape #545775 ΔE 0.067
Use #4B437F 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.