#6C5FBF
Closest named color: Slate Blue (#6A5ACD). oklch(54.5% 0.145 286.8), rgb(108, 95, 191).
Aa
White text reads best on this color (5.21:1).
About this color
#6C5FBF is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.145 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.026 away. White text reads best on it, at 5.21:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #6C5FBF |
| RGB | rgb(108, 95, 191) |
| HSL | hsl(248, 43%, 56%) |
| OKLCH | oklch(54.5% 0.145 286.8) |
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 #6C5FBF | 5.21:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #6C5FBF | 4.02:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #6C5FBF text on white | 5.21:1 | AA | Lc 75.7 | Fine for body text |
| #6C5FBF text on black | 4.02:1 | AA large text | Lc -26.1 | 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 600.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BDBBE9
oklch(80.9% 0.064 286.9)
-
Step 400
400
#9C96DF
oklch(70.6% 0.106 287.1)
-
Step 500
500
#857BD5
oklch(63.1% 0.133 287)
-
Step 600
600 (this color)
#6C5FBF
oklch(54.5% 0.145 286.8)
-
Step 700
700
#5D51A8
oklch(49.1% 0.135 286.7)
-
Step 800
800
#4C4388
oklch(42.7% 0.111 286.7)
-
Step 900
900
#3F396D
oklch(37.7% 0.087 286.7)
-
Step 950
950
#252240
oklch(27.1% 0.055 286.7)
#6C5FBF 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) | #366FC2 | 0.072 |
| Deuteranopia (no green cones) | #346ABD | 0.071 |
| Tritanopia (no blue cones) | #537386 | 0.122 |
| Achromatopsia (no color) | #6C6C6C | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C5FBF
#6C5FBF
oklch(54.5% 0.145 286.8)
- #797400
#797400
oklch(54.6% 0.117 106.7)
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 #6C5FBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.026
- Iris #6258C4 ΔE 0.027
- Light Indigo #6D5ACF ΔE 0.029
- Dark Periwinkle #665FD1 ΔE 0.029
- Deep Lavender #8D5EB7 ΔE 0.056
- French Blue #436BAD ΔE 0.069
- Warm Blue #4B57DB ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.074
Use #6C5FBF 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.