#5B59B4
Closest named color: Iris (#6258C4). oklch(51.2% 0.14 281.2), rgb(91, 89, 180).
Aa
White text reads best on this color (5.94:1).
About this color
#5B59B4 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.140 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.028 away. White text reads best on it, at 5.94:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #5B59B4 |
| RGB | rgb(91, 89, 180) |
| HSL | hsl(241, 38%, 53%) |
| OKLCH | oklch(51.2% 0.14 281.2) |
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 #5B59B4 | 5.94:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #5B59B4 | 3.53:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #5B59B4 text on white | 5.94:1 | AA | Lc 79.5 | Fine for body text |
| #5B59B4 text on black | 3.53:1 | AA large text | Lc -22.3 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F2
oklch(88.5% 0.037 280.6)
-
Step 300
300
#B8BCEC
oklch(80.8% 0.068 281)
-
Step 400
400
#9598E3
oklch(70.7% 0.109 281.5)
-
Step 500
500
#7C7DDB
oklch(63.1% 0.139 281.2)
-
Step 600
600
#6664C8
oklch(55.5% 0.151 281.2)
-
Step 700
700 (this color)
#5B59B4
oklch(51.2% 0.14 281.2)
-
Step 800
800
#46448C
oklch(42.7% 0.116 281.5)
-
Step 900
900
#3A3A70
oklch(37.7% 0.091 281.1)
-
Step 950
950
#222242
oklch(27% 0.059 281.7)
#5B59B4 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) | #2E67B7 | 0.058 |
| Deuteranopia (no green cones) | #2760B2 | 0.059 |
| Tritanopia (no blue cones) | #3A6D7E | 0.121 |
| Achromatopsia (no color) | #646464 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B59B4
#5B59B4
oklch(51.2% 0.14 281.2)
- #746800
#746800
oklch(51.3% 0.107 101.5)
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 #5B59B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.028
- Slate Blue #6A5ACD ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.051
- French Blue #436BAD ΔE 0.056
- Dusky Blue #475F94 ΔE 0.063
- Bluey Purple #6241C7 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.065
Use #5B59B4 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.