#4D288E
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.158 294.4), rgb(77, 40, 142).
Aa
White text reads best on this color (10.44:1).
About this color
#4D288E is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.158 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.048 away. White text reads best on it, at 10.44:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.44:1 |
Values
| HEX | #4D288E |
| RGB | rgb(77, 40, 142) |
| HSL | hsl(262, 56%, 36%) |
| OKLCH | oklch(38.7% 0.158 294.4) |
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 #4D288E | 10.44:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #4D288E | 2.00:1 | Fails | Lc 10.3 | Not readable |
| #4D288E text on white | 10.44:1 | AAA | Lc 93.6 | Preferred for body text |
| #4D288E text on black | 2.00:1 | Fails | Lc -8.9 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FF
oklch(93.6% 0.034 294.9)
-
Step 200
200
#DBD2FF
oklch(88.5% 0.062 294.3)
-
Step 300
300
#C5B3FF
oklch(80.9% 0.107 294.8)
-
Step 400
400
#A987FF
oklch(70.7% 0.172 294.7)
-
Step 500
500
#9662FF
oklch(63.1% 0.222 294.4)
-
Step 600
600
#8535F9
oklch(55.6% 0.264 294.5)
-
Step 700
700
#7123D9
oklch(49.1% 0.245 294.5)
-
Step 800
800
#5C22AF
oklch(42.7% 0.202 294.7)
-
Step 900
900 (this color)
#4D288E
oklch(38.7% 0.158 294.4)
-
Step 950
950
#2B1751
oklch(26.9% 0.101 294.5)
#4D288E 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) | #004091 | 0.095 |
| Deuteranopia (no green cones) | #003E8C | 0.095 |
| Tritanopia (no blue cones) | #3B4258 | 0.124 |
| Achromatopsia (no color) | #3F3F3F | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D288E
#4D288E
oklch(38.7% 0.158 294.4)
- #444900
#444900
oklch(38.8% 0.087 114.2)
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 #4D288E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.048
- Imperial Purple #480CA8 ΔE 0.055
- Indigo #4B0082 ΔE 0.057
- Blueberry #464196 ΔE 0.057
- Rebecca Purple #663399 ΔE 0.058
- Chrysanthemum #560BAD ΔE 0.059
- Indigo Blue #3A18B1 ΔE 0.074
- Royal Purple #4B006E ΔE 0.080
Use #4D288E 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.