#5F55AB
Closest named color: Iris (#6258C4). oklch(50.2% 0.133 285.9), rgb(95, 85, 171).
Aa
White text reads best on this color (6.22:1).
About this color
#5F55AB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.133 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 6.22:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #5F55AB |
| RGB | rgb(95, 85, 171) |
| HSL | hsl(247, 34%, 50%) |
| OKLCH | oklch(50.2% 0.133 285.9) |
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 #5F55AB | 6.22:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #5F55AB | 3.37:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #5F55AB text on white | 6.22:1 | AA | Lc 80.8 | Fine for body text |
| #5F55AB text on black | 3.37:1 | AA large text | Lc -21.0 | 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
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F0
oklch(88.4% 0.036 285.7)
-
Step 300
300
#BCBBE9
oklch(80.8% 0.065 285.9)
-
Step 400
400
#9B97DE
oklch(70.7% 0.103 286)
-
Step 500
500
#837CD5
oklch(63.1% 0.131 285.6)
-
Step 600
600
#6E63C2
oklch(55.6% 0.143 286)
-
Step 700
700 (this color)
#5F55AB
oklch(50.2% 0.133 285.9)
-
Step 800
800
#4B4388
oklch(42.7% 0.111 286)
-
Step 900
900
#3E396D
oklch(37.6% 0.087 285.8)
-
Step 950
950
#242240
oklch(27% 0.055 285.1)
#5F55AB 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) | #3063AE | 0.063 |
| Deuteranopia (no green cones) | #2E5EA9 | 0.063 |
| Tritanopia (no blue cones) | #476778 | 0.112 |
| Achromatopsia (no color) | #616161 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F55AB
#5F55AB
oklch(50.2% 0.133 285.9)
- #6C6700
#6C6700
oklch(50.2% 0.107 106.3)
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 #5F55AB, closest first.
No curated palette has a color within ΔE 0.04 of #5F55AB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Slate Blue #6A5ACD ΔE 0.057
- Twilight #4E518B ΔE 0.059
- Dusky Blue #475F94 ΔE 0.059
- Light Indigo #6D5ACF ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.063
- French Blue #436BAD ΔE 0.065
- Bluey Purple #6241C7 ΔE 0.065
Use #5F55AB 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.