#4C2F90
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.152 291.8), rgb(76, 47, 144).
Aa
White text reads best on this color (9.92:1).
About this color
#4C2F90 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.152 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.034 away. White text reads best on it, at 9.92:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.92:1 |
Values
| HEX | #4C2F90 |
| RGB | rgb(76, 47, 144) |
| HSL | hsl(258, 51%, 37%) |
| OKLCH | oklch(39.8% 0.152 291.8) |
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 #4C2F90 | 9.92:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #4C2F90 | 2.11:1 | Fails | Lc 11.4 | Not readable |
| #4C2F90 text on white | 9.92:1 | AAA | Lc 92.5 | Preferred for body text |
| #4C2F90 text on black | 2.11:1 | Fails | Lc -9.9 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE6FF
oklch(93.6% 0.034 293.1)
-
Step 200
200
#D9D3FF
oklch(88.6% 0.06 291.4)
-
Step 300
300
#C1B5FF
oklch(81% 0.104 291.3)
-
Step 400
400
#A48AFF
oklch(70.7% 0.167 291.8)
-
Step 500
500
#9066FF
oklch(63.1% 0.217 291.6)
-
Step 600
600
#7E3EF7
oklch(55.6% 0.253 291.7)
-
Step 700
700
#6B2DD7
oklch(49.1% 0.235 291.7)
-
Step 800
800
#5728AE
oklch(42.7% 0.196 291.9)
-
Step 900
900 (this color)
#4C2F90
oklch(39.8% 0.152 291.8)
-
Step 950
950
#291950
oklch(26.9% 0.096 292.1)
#4C2F90 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) | #004493 | 0.088 |
| Deuteranopia (no green cones) | #00418E | 0.087 |
| Tritanopia (no blue cones) | #37465B | 0.121 |
| Achromatopsia (no color) | #434343 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C2F90
#4C2F90
oklch(39.8% 0.152 291.8)
- #494B00
#494B00
oklch(39.8% 0.088 111.5)
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 #4C2F90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Blueberry #464196 ΔE 0.043
- Rebecca Purple #663399 ΔE 0.053
- Imperial Purple #480CA8 ΔE 0.061
- Chrysanthemum #560BAD ΔE 0.064
- Indigo #4B0082 ΔE 0.071
- Indigo Blue #3A18B1 ΔE 0.074
- Sapphire #2138AB ΔE 0.077
Use #4C2F90 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.