#6C55B8
Closest named color: Iris (#6258C4). oklch(52.2% 0.15 291), rgb(108, 85, 184).
Aa
White text reads best on this color (5.78:1).
About this color
#6C55B8 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.150 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 5.78:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.62:1 |
| White text | 5.78:1 |
Values
| HEX | #6C55B8 |
| RGB | rgb(108, 85, 184) |
| HSL | hsl(254, 41%, 53%) |
| OKLCH | oklch(52.2% 0.15 291) |
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 #6C55B8 | 5.78:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #6C55B8 | 3.62:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #6C55B8 text on white | 5.78:1 | AA | Lc 78.7 | Fine for body text |
| #6C55B8 text on black | 3.62:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C0B9ED
oklch(80.9% 0.073 290.8)
-
Step 400
400
#A193E4
oklch(70.7% 0.117 291)
-
Step 500
500
#8B76DB
oklch(63% 0.148 291.1)
-
Step 600
600
#765DC9
oklch(55.6% 0.161 290.9)
-
Step 700
700 (this color)
#6C55B8
oklch(52.2% 0.15 291)
-
Step 800
800
#513F8D
oklch(42.8% 0.124 290.8)
-
Step 900
900
#433670
oklch(37.7% 0.096 291.4)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#6C55B8 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) | #2767BB | 0.088 |
| Deuteranopia (no green cones) | #2B63B6 | 0.084 |
| Tritanopia (no blue cones) | #576A7E | 0.124 |
| Achromatopsia (no color) | #656565 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C55B8
#6C55B8
oklch(52.2% 0.15 291)
- #6D6F00
#6D6F00
oklch(52.2% 0.115 111)
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 #6C55B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Slate Blue #6A5ACD ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.044
- Bluey Purple #6241C7 ΔE 0.056
- Deep Lavender #8D5EB7 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.072
- Blue With A Hint Of Purple #533CC6 ΔE 0.077
Use #6C55B8 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.