#6C5BBB
Closest named color: Iris (#6258C4). oklch(53.5% 0.145 288.6), rgb(108, 91, 187).
Aa
White text reads best on this color (5.45:1).
About this color
#6C5BBB is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.145 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.024 away. White text reads best on it, at 5.45:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #6C5BBB |
| RGB | rgb(108, 91, 187) |
| HSL | hsl(251, 41%, 55%) |
| OKLCH | oklch(53.5% 0.145 288.6) |
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 #6C5BBB | 5.45:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #6C5BBB | 3.85:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #6C5BBB text on white | 5.45:1 | AA | Lc 77.0 | Fine for body text |
| #6C5BBB text on black | 3.85:1 | AA large text | Lc -24.8 | 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 600.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#BEBAE9
oklch(80.8% 0.066 288.7)
-
Step 400
400
#9E96DE
oklch(70.8% 0.104 288.5)
-
Step 500
500
#877AD5
oklch(63.1% 0.134 288.5)
-
Step 600
600 (this color)
#6C5BBB
oklch(53.5% 0.145 288.6)
-
Step 700
700
#6050A7
oklch(49.1% 0.135 288.9)
-
Step 800
800
#4E4288
oklch(42.7% 0.112 288.6)
-
Step 900
900
#40386D
oklch(37.6% 0.088 288.3)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#6C5BBB 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) | #316CBE | 0.078 |
| Deuteranopia (no green cones) | #3267B9 | 0.075 |
| Tritanopia (no blue cones) | #556F82 | 0.121 |
| Achromatopsia (no color) | #696969 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C5BBB
#6C5BBB
oklch(53.5% 0.145 288.6)
- #737200
#737200
oklch(53.5% 0.116 109.2)
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 #6C5BBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.024
- Slate Blue #6A5ACD ΔE 0.029
- Light Indigo #6D5ACF ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.035
- Deep Lavender #8D5EB7 ΔE 0.058
- Bluey Purple #6241C7 ΔE 0.067
- Warm Blue #4B57DB ΔE 0.071
- French Blue #436BAD ΔE 0.071
Use #6C5BBB 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.