#5E3691
Closest named color: Rebecca Purple (#663399). oklch(42.9% 0.145 300.7), rgb(94, 54, 145).
Aa
White text reads best on this color (8.70:1).
About this color
#5E3691 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.145 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.020 away. White text reads best on it, at 8.70:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #5E3691 |
| RGB | rgb(94, 54, 145) |
| HSL | hsl(266, 46%, 39%) |
| OKLCH | oklch(42.9% 0.145 300.7) |
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 #5E3691 | 8.70:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #5E3691 | 2.41:1 | Fails | Lc 14.6 | Not readable |
| #5E3691 text on white | 8.70:1 | AAA | Lc 89.4 | Fine for body text |
| #5E3691 text on black | 2.41:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#ECE6F8
oklch(93.5% 0.025 301.1)
-
Step 200
200
#DED3F4
oklch(88.6% 0.046 300.7)
-
Step 300
300
#C9B4EF
oklch(80.8% 0.085 300.8)
-
Step 400
400
#AF8BE7
oklch(70.6% 0.135 301)
-
Step 500
500
#9C6BE0
oklch(63% 0.173 300.9)
-
Step 600
600
#8750CE
oklch(55.6% 0.188 300.5)
-
Step 700
700
#733FB2
oklch(49% 0.175 300.9)
-
Step 800
800 (this color)
#5E3691
oklch(42.9% 0.145 300.7)
-
Step 900
900
#4C3073
oklch(37.7% 0.112 300.4)
-
Step 950
950
#2D1D43
oklch(27.1% 0.07 301.3)
#5E3691 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) | #004B94 | 0.111 |
| Deuteranopia (no green cones) | #174B8F | 0.103 |
| Tritanopia (no blue cones) | #53495E | 0.109 |
| Achromatopsia (no color) | #4B4B4B | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E3691
#5E3691
oklch(42.9% 0.145 300.7)
- #485700
#485700
oklch(42.9% 0.102 120.5)
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 #5E3691, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.020
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.047
- Twilight #4E518B ΔE 0.073
- Chrysanthemum #560BAD ΔE 0.078
- Grape #7209B7 ΔE 0.086
- Dusk #4E5481 ΔE 0.088
- Imperial Purple #480CA8 ΔE 0.088
Use #5E3691 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.