#5C55CB
Closest named color: Iris (#6258C4). oklch(52.2% 0.177 281), rgb(92, 85, 203).
Aa
White text reads best on this color (5.80:1).
About this color
#5C55CB is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.177 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.017 away. White text reads best on it, at 5.80:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #5C55CB |
| RGB | rgb(92, 85, 203) |
| HSL | hsl(244, 53%, 56%) |
| OKLCH | oklch(52.2% 0.177 281) |
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 #5C55CB | 5.80:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #5C55CB | 3.61:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #5C55CB text on white | 5.80:1 | AA | Lc 78.7 | Fine for body text |
| #5C55CB text on black | 3.61:1 | AA large text | Lc -23.1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D3D6F9
oklch(88.5% 0.048 281.5)
-
Step 300
300
#B6BBF7
oklch(80.9% 0.085 280.6)
-
Step 400
400
#9295F4
oklch(70.7% 0.138 280.9)
-
Step 500
500
#7A77EF
oklch(63% 0.175 281.2)
-
Step 600
600
#655DDE
oklch(55.7% 0.19 281)
-
Step 700
700 (this color)
#5C55CB
oklch(52.2% 0.177 281)
-
Step 800
800
#443F9C
oklch(42.8% 0.147 280.6)
-
Step 900
900
#39367C
oklch(37.6% 0.115 281.2)
-
Step 950
950
#212148
oklch(27.1% 0.071 280.6)
#5C55CB 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) | #006ACF | 0.080 |
| Deuteranopia (no green cones) | #0061C9 | 0.076 |
| Tritanopia (no blue cones) | #277188 | 0.152 |
| Achromatopsia (no color) | #656565 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C55CB
#5C55CB
oklch(52.2% 0.177 281)
- #776B00
#776B00
oklch(52.3% 0.109 101.7)
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 #5C55CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.017
- Slate Blue #6A5ACD ΔE 0.026
- Dark Periwinkle #665FD1 ΔE 0.031
- Light Indigo #6D5ACF ΔE 0.031
- Warm Blue #4B57DB ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.043
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Blurple #5539CC ΔE 0.061
Use #5C55CB 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.