#4D338A
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.138 292.9), rgb(77, 51, 138).
Aa
White text reads best on this color (9.73:1).
About this color
#4D338A is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.138 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.025 away. White text reads best on it, at 9.73:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.73:1 |
Values
| HEX | #4D338A |
| RGB | rgb(77, 51, 138) |
| HSL | hsl(258, 46%, 37%) |
| OKLCH | oklch(40.1% 0.138 292.9) |
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 #4D338A | 9.73:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #4D338A | 2.15:1 | Fails | Lc 11.8 | Not readable |
| #4D338A text on white | 9.73:1 | AAA | Lc 92.2 | Preferred for body text |
| #4D338A text on black | 2.15:1 | Fails | Lc -10.2 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FD
oklch(93.7% 0.03 292.1)
-
Step 200
200
#DAD3FD
oklch(88.6% 0.058 292.8)
-
Step 300
300
#C3B4FE
oklch(80.9% 0.104 293.2)
-
Step 400
400
#A689FD
oklch(70.6% 0.166 293.2)
-
Step 500
500
#9266FB
oklch(63% 0.212 292.9)
-
Step 600
600
#7E47EA
oklch(55.6% 0.23 292.8)
-
Step 700
700
#6B36CC
oklch(49.1% 0.215 292.8)
-
Step 800
800
#572FA5
oklch(42.8% 0.178 292.8)
-
Step 900
900 (this color)
#4D338A
oklch(40.1% 0.138 292.9)
-
Step 950
950
#291B4C
oklch(27% 0.087 292.8)
#4D338A 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) | #00458D | 0.087 |
| Deuteranopia (no green cones) | #004288 | 0.087 |
| Tritanopia (no blue cones) | #3C4759 | 0.111 |
| Achromatopsia (no color) | #444444 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D338A
#4D338A
oklch(40.1% 0.138 292.9)
- #494C00
#494C00
oklch(40% 0.089 112.4)
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 #4D338A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.025
- Blueberry #464196 ΔE 0.038
- Rebecca Purple #663399 ΔE 0.053
- Imperial Purple #480CA8 ΔE 0.075
- Cobalt #1E488F ΔE 0.076
- Chrysanthemum #560BAD ΔE 0.077
- Indigo #4B0082 ΔE 0.078
- Twilight #4E518B ΔE 0.078
Use #4D338A 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.