#5C55B2
Closest named color: Iris (#6258C4). oklch(50.4% 0.143 283.4), rgb(92, 85, 178).
Aa
White text reads best on this color (6.18:1).
About this color
#5C55B2 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.143 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 6.18:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.39:1 |
| White text | 6.18:1 |
Values
| HEX | #5C55B2 |
| RGB | rgb(92, 85, 178) |
| HSL | hsl(245, 38%, 52%) |
| OKLCH | oklch(50.4% 0.143 283.4) |
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 #5C55B2 | 6.18:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #5C55B2 | 3.39:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #5C55B2 text on white | 6.18:1 | AA | Lc 80.6 | Fine for body text |
| #5C55B2 text on black | 3.39:1 | AA large text | Lc -21.2 | 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
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D5D6F2
oklch(88.4% 0.038 284)
-
Step 300
300
#BABBED
oklch(80.8% 0.07 283.8)
-
Step 400
400
#9797E3
oklch(70.6% 0.11 283.2)
-
Step 500
500
#7F7CDB
oklch(63.1% 0.14 283)
-
Step 600
600
#6A63C9
oklch(55.7% 0.153 283.3)
-
Step 700
700 (this color)
#5C55B2
oklch(50.4% 0.143 283.4)
-
Step 800
800
#48438D
oklch(42.7% 0.119 283.2)
-
Step 900
900
#3C3970
oklch(37.6% 0.092 283.5)
-
Step 950
950
#232242
oklch(27.1% 0.058 283.2)
#5C55B2 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) | #2764B5 | 0.066 |
| Deuteranopia (no green cones) | #225EB0 | 0.066 |
| Tritanopia (no blue cones) | #3E697B | 0.122 |
| Achromatopsia (no color) | #616161 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C55B2
#5C55B2
oklch(50.4% 0.143 283.4)
- #706600
#706600
oklch(50.4% 0.106 102.8)
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 #5C55B2, closest first.
No curated palette has a color within ΔE 0.04 of #5C55B2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.057
- French Blue #436BAD ΔE 0.065
- Dusky Blue #475F94 ΔE 0.066
- Twilight #4E518B ΔE 0.067
Use #5C55B2 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.