#6D55B6
Closest named color: Iris (#6258C4). oklch(52.2% 0.148 291.9), rgb(109, 85, 182).
Aa
White text reads best on this color (5.79:1).
About this color
#6D55B6 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.148 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.028 away. White text reads best on it, at 5.79:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.62:1 |
| White text | 5.79:1 |
Values
| HEX | #6D55B6 |
| RGB | rgb(109, 85, 182) |
| HSL | hsl(255, 40%, 52%) |
| OKLCH | oklch(52.2% 0.148 291.9) |
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 #6D55B6 | 5.79:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #6D55B6 | 3.62:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #6D55B6 text on white | 5.79:1 | AA | Lc 78.7 | Fine for body text |
| #6D55B6 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
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#D9D5F2
oklch(88.5% 0.04 291.9)
-
Step 300
300
#C1B9EC
oklch(81% 0.072 291.9)
-
Step 400
400
#A293E2
oklch(70.7% 0.114 291.9)
-
Step 500
500
#8C76DA
oklch(63% 0.147 291.7)
-
Step 600
600
#775DC7
oklch(55.6% 0.159 291.7)
-
Step 700
700 (this color)
#6D55B6
oklch(52.2% 0.148 291.9)
-
Step 800
800
#523F8B
oklch(42.7% 0.121 292)
-
Step 900
900
#43366F
oklch(37.6% 0.095 291.7)
-
Step 950
950
#272041
oklch(26.9% 0.06 291.6)
#6D55B6 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) | #2A67B9 | 0.088 |
| Deuteranopia (no green cones) | #2E64B4 | 0.084 |
| Tritanopia (no blue cones) | #5A697D | 0.120 |
| Achromatopsia (no color) | #656565 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D55B6
#6D55B6
oklch(52.2% 0.148 291.9)
- #6C6F00
#6C6F00
oklch(52.2% 0.115 111.6)
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 #6D55B6, 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 0.037
- Light Indigo #6D5ACF ΔE 0.039
- Dark Periwinkle #665FD1 ΔE 0.047
- Bluey Purple #6241C7 ΔE 0.058
- Deep Lavender #8D5EB7 ΔE 0.062
- Warm Blue #4B57DB ΔE 0.076
- French Blue #436BAD ΔE 0.079
Use #6D55B6 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.