#5B56A3
Closest named color: Twilight (#4E518B). oklch(49.5% 0.12 284.1), rgb(91, 86, 163).
Aa
White text reads best on this color (6.35:1).
About this color
#5B56A3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.120 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.045 away. White text reads best on it, at 6.35:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.30:1 |
| White text | 6.35:1 |
Values
| HEX | #5B56A3 |
| RGB | rgb(91, 86, 163) |
| HSL | hsl(244, 31%, 49%) |
| OKLCH | oklch(49.5% 0.12 284.1) |
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 #5B56A3 | 6.35:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #5B56A3 | 3.30:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #5B56A3 text on white | 6.35:1 | AA | Lc 81.5 | Fine for body text |
| #5B56A3 text on black | 3.30:1 | AA large text | Lc -20.4 | 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
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BBBCE6
oklch(80.8% 0.059 283.9)
-
Step 400
400
#9999D9
oklch(70.7% 0.093 283.8)
-
Step 500
500
#817ECE
oklch(63% 0.119 284.1)
-
Step 600
600
#6B66BB
oklch(55.5% 0.129 284)
-
Step 700
700 (this color)
#5B56A3
oklch(49.5% 0.12 284.1)
-
Step 800
800
#494683
oklch(42.8% 0.099 283.6)
-
Step 900
900
#3D3B69
oklch(37.7% 0.077 284)
-
Step 950
950
#24233D
oklch(27.1% 0.048 284.5)
#5B56A3 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) | #3762A6 | 0.052 |
| Deuteranopia (no green cones) | #355DA1 | 0.050 |
| Tritanopia (no blue cones) | #456674 | 0.104 |
| Achromatopsia (no color) | #5F5F5F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B56A3
#5B56A3
oklch(49.5% 0.12 284.1)
- #6C6400
#6C6400
oklch(49.5% 0.105 104.1)
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 #5B56A3, closest first.
No curated palette has a color within ΔE 0.04 of #5B56A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.045
- Dusky Blue #475F94 ΔE 0.046
- Iris #6258C4 ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.054
- Dusk #4E5481 ΔE 0.059
- French Blue #436BAD ΔE 0.060
- Blueberry #464196 ΔE 0.069
- Denim #3B638C ΔE 0.070
Use #5B56A3 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.