#5A4791
Closest named color: Twilight (#4E518B). oklch(45.4% 0.117 293), rgb(90, 71, 145).
Aa
White text reads best on this color (7.65:1).
About this color
#5A4791 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.117 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.034 away. White text reads best on it, at 7.65:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #5A4791 |
| RGB | rgb(90, 71, 145) |
| HSL | hsl(255, 34%, 42%) |
| OKLCH | oklch(45.4% 0.117 293) |
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 #5A4791 | 7.65:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #5A4791 | 2.74:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #5A4791 text on white | 7.65:1 | AAA | Lc 86.4 | Fine for body text |
| #5A4791 text on black | 2.74:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#D9D5F1
oklch(88.5% 0.038 292.2)
-
Step 300
300
#C2B9EA
oklch(81% 0.069 293.2)
-
Step 400
400
#A393DF
oklch(70.6% 0.11 293)
-
Step 500
500
#8E77D6
oklch(63.2% 0.14 293.1)
-
Step 600
600
#785EC3
oklch(55.6% 0.152 292.6)
-
Step 700
700
#664DA9
oklch(49.3% 0.142 293)
-
Step 800
800 (this color)
#5A4791
oklch(45.4% 0.117 293)
-
Step 900
900
#44366D
oklch(37.6% 0.092 293.2)
-
Step 950
950
#282040
oklch(27% 0.059 293.6)
#5A4791 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) | #2B5494 | 0.068 |
| Deuteranopia (no green cones) | #2E528F | 0.065 |
| Tritanopia (no blue cones) | #4C5665 | 0.096 |
| Achromatopsia (no color) | #535353 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A4791
#5A4791
oklch(45.4% 0.117 293)
- #575C00
#575C00
oklch(45.5% 0.102 113.4)
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 #5A4791, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.034
- Blueberry #464196 ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.043
- Dusk #4E5481 ΔE 0.051
- Rebecca Purple #663399 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.066
- Dusky Blue #475F94 ΔE 0.068
- Dusty Grape #545775 ΔE 0.072
Use #5A4791 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.