#6B4CB9
Closest named color: Iris (#6258C4). oklch(50.7% 0.165 292.7), rgb(107, 76, 185).
Aa
White text reads best on this color (6.25:1).
About this color
#6B4CB9 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.165 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.033 away. White text reads best on it, at 6.25:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.35:1 |
| White text | 6.25:1 |
Values
| HEX | #6B4CB9 |
| RGB | rgb(107, 76, 185) |
| HSL | hsl(257, 44%, 51%) |
| OKLCH | oklch(50.7% 0.165 292.7) |
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 #6B4CB9 | 6.25:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #6B4CB9 | 3.35:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #6B4CB9 text on white | 6.25:1 | AA | Lc 80.8 | Fine for body text |
| #6B4CB9 text on black | 3.35:1 | AA large text | Lc -21.1 | 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
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C2B8F0
oklch(81% 0.079 292.7)
-
Step 400
400
#A391E9
oklch(70.8% 0.127 292.2)
-
Step 500
500
#8E72E2
oklch(63% 0.164 292.6)
-
Step 600
600
#7A58D0
oklch(55.7% 0.177 292.8)
-
Step 700
700 (this color)
#6B4CB9
oklch(50.7% 0.165 292.7)
-
Step 800
800
#543B92
oklch(42.7% 0.137 292.9)
-
Step 900
900
#453474
oklch(37.8% 0.106 292.9)
-
Step 950
950
#281F44
oklch(27% 0.067 292.5)
#6B4CB9 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) | #0062BD | 0.107 |
| Deuteranopia (no green cones) | #115EB7 | 0.102 |
| Tritanopia (no blue cones) | #56647B | 0.132 |
| Achromatopsia (no color) | #606060 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B4CB9
#6B4CB9
oklch(50.7% 0.165 292.7)
- #666B00
#666B00
oklch(50.6% 0.113 113)
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 #6B4CB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.033
- Bluey Purple #6241C7 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.043
- Light Indigo #6D5ACF ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Blurple #5539CC ΔE 0.066
- Warm Blue #4B57DB ΔE 0.073
Use #6B4CB9 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.