#5B4D9D
Closest named color: Twilight (#4E518B). oklch(47.4% 0.125 288.7), rgb(91, 77, 157).
Aa
White text reads best on this color (7.01:1).
About this color
#5B4D9D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.125 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.039 away. White text reads best on it, at 7.01:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #5B4D9D |
| RGB | rgb(91, 77, 157) |
| HSL | hsl(251, 34%, 46%) |
| OKLCH | oklch(47.4% 0.125 288.7) |
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 #5B4D9D | 7.01:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #5B4D9D | 2.99:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #5B4D9D text on white | 7.01:1 | AAA | Lc 84.1 | Fine for body text |
| #5B4D9D text on black | 2.99:1 | Fails | Lc -17.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#BEBBE6
oklch(80.9% 0.06 288.2)
-
Step 400
400
#9E97DA
oklch(70.8% 0.097 288.4)
-
Step 500
500
#877CCF
oklch(63.1% 0.123 288.4)
-
Step 600
600
#7263BC
oklch(55.5% 0.135 289)
-
Step 700
700 (this color)
#5B4D9D
oklch(47.4% 0.125 288.7)
-
Step 800
800
#4E4384
oklch(42.7% 0.105 288.9)
-
Step 900
900
#403969
oklch(37.6% 0.081 288.6)
-
Step 950
950
#26223E
oklch(27.1% 0.051 289.1)
#5B4D9D 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) | #2C5BA0 | 0.066 |
| Deuteranopia (no green cones) | #2C579B | 0.064 |
| Tritanopia (no blue cones) | #485D6D | 0.104 |
| Achromatopsia (no color) | #595959 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B4D9D
#5B4D9D
oklch(47.4% 0.125 288.7)
- #616000
#616000
oklch(47.4% 0.103 109.1)
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 #5B4D9D, closest first.
No curated palette has a color within ΔE 0.04 of #5B4D9D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.039
- Blueberry #464196 ΔE 0.050
- Dusk #4E5481 ΔE 0.057
- Dusky Blue #475F94 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.060
- Rebecca Purple #663399 ΔE 0.061
- Iris #6258C4 ΔE 0.066
Use #5B4D9D 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.