#6B59C6
Closest named color: Slate Blue (#6A5ACD). oklch(53.8% 0.163 287.2), rgb(107, 89, 198).
Aa
White text reads best on this color (5.42:1).
About this color
#6B59C6 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.163 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.011 away. White text reads best on it, at 5.42:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.86:1 |
| White text | 5.42:1 |
Values
| HEX | #6B59C6 |
| RGB | rgb(107, 89, 198) |
| HSL | hsl(250, 49%, 56%) |
| OKLCH | oklch(53.8% 0.163 287.2) |
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 #6B59C6 | 5.42:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #6B59C6 | 3.86:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #6B59C6 text on white | 5.42:1 | AA | Lc 76.8 | Fine for body text |
| #6B59C6 text on black | 3.86:1 | AA large text | Lc -25.0 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D7D6F3
oklch(88.6% 0.04 287.1)
-
Step 300
300
#BDBAEE
oklch(80.9% 0.073 287.3)
-
Step 400
400
#9C95E6
oklch(70.8% 0.117 287)
-
Step 500
500
#8578DE
oklch(63% 0.15 287.1)
-
Step 600
600 (this color)
#6B59C6
oklch(53.8% 0.163 287.2)
-
Step 700
700
#5E4DB1
oklch(49.1% 0.153 287.2)
-
Step 800
800
#4D408F
oklch(42.7% 0.126 287.4)
-
Step 900
900
#3F3772
oklch(37.6% 0.098 286.9)
-
Step 950
950
#252143
oklch(27.1% 0.062 286.9)
#6B59C6 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) | #1C6CCA | 0.088 |
| Deuteranopia (no green cones) | #1B67C4 | 0.088 |
| Tritanopia (no blue cones) | #4E7187 | 0.136 |
| Achromatopsia (no color) | #6A6A6A | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B59C6
#6B59C6
oklch(53.8% 0.163 287.2)
- #767200
#767200
oklch(53.8% 0.116 107.3)
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 #6B59C6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.011
- Light Indigo #6D5ACF ΔE 0.014
- Iris #6258C4 ΔE 0.015
- Dark Periwinkle #665FD1 ΔE 0.022
- Bluey Purple #6241C7 ΔE 0.057
- Warm Blue #4B57DB ΔE 0.057
- Purpley #8756E4 ΔE 0.065
- Deep Lavender #8D5EB7 ΔE 0.065
Use #6B59C6 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.