#5B4D90
Closest named color: Twilight (#4E518B). oklch(46.6% 0.106 291.3), rgb(91, 77, 144).
Aa
White text reads best on this color (7.21:1).
About this color
#5B4D90 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.106 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.025 away. White text reads best on it, at 7.21:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.90:1 |
| White text | 7.21:1 |
Values
| HEX | #5B4D90 |
| RGB | rgb(91, 77, 144) |
| HSL | hsl(253, 30%, 43%) |
| OKLCH | oklch(46.6% 0.106 291.3) |
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 #5B4D90 | 7.21:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #5B4D90 | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #5B4D90 text on white | 7.21:1 | AAA | Lc 84.9 | Fine for body text |
| #5B4D90 text on black | 2.90:1 | Fails | Lc -17.1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#D9D6EB
oklch(88.5% 0.029 292.4)
-
Step 300
300
#C0BBE0
oklch(80.8% 0.052 291.4)
-
Step 400
400
#A198D0
oklch(70.8% 0.081 291.5)
-
Step 500
500
#8A7DC4
oklch(63% 0.106 291.5)
-
Step 600
600
#7466B1
oklch(55.6% 0.114 290.8)
-
Step 700
700 (this color)
#5B4D90
oklch(46.6% 0.106 291.3)
-
Step 800
800
#50457B
oklch(42.7% 0.088 291.6)
-
Step 900
900
#423A63
oklch(37.6% 0.069 291.7)
-
Step 950
950
#27223A
oklch(26.9% 0.044 292.7)
#5B4D90 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) | #365892 | 0.056 |
| Deuteranopia (no green cones) | #37568E | 0.054 |
| Tritanopia (no blue cones) | #4E5A67 | 0.088 |
| Achromatopsia (no color) | #575757 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B4D90
#5B4D90
oklch(46.6% 0.106 291.3)
- #5C5E00
#5C5E00
oklch(46.5% 0.102 111.2)
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 #5B4D90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.025
- Dusk #4E5481 ΔE 0.040
- Blueberry #464196 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.054
- Denim Blue #3B5B92 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.056
- Dusty Grape #545775 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.066
Use #5B4D90 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.