#6B4FB1
Closest named color: Iris (#6258C4). oklch(50.6% 0.15 293.5), rgb(107, 79, 177).
Aa
White text reads best on this color (6.21:1).
About this color
#6B4FB1 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.150 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.037 away. White text reads best on it, at 6.21:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.37:1 |
| White text | 6.21:1 |
Values
| HEX | #6B4FB1 |
| RGB | rgb(107, 79, 177) |
| HSL | hsl(257, 39%, 50%) |
| OKLCH | oklch(50.6% 0.15 293.5) |
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 #6B4FB1 | 6.21:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #6B4FB1 | 3.37:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #6B4FB1 text on white | 6.21:1 | AA | Lc 80.7 | Fine for body text |
| #6B4FB1 text on black | 3.37:1 | 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
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C2B8EC
oklch(80.8% 0.073 293.5)
-
Step 400
400
#A492E2
oklch(70.7% 0.116 293.5)
-
Step 500
500
#8F75DA
oklch(63.1% 0.149 293.5)
-
Step 600
600
#7A5BC7
oklch(55.5% 0.162 293.7)
-
Step 700
700 (this color)
#6B4FB1
oklch(50.6% 0.15 293.5)
-
Step 800
800
#543E8B
oklch(42.8% 0.123 293.7)
-
Step 900
900
#45356F
oklch(37.6% 0.097 294)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#6B4FB1 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) | #2062B4 | 0.095 |
| Deuteranopia (no green cones) | #285FAF | 0.090 |
| Tritanopia (no blue cones) | #596478 | 0.121 |
| Achromatopsia (no color) | #616161 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B4FB1
#6B4FB1
oklch(50.6% 0.15 293.5)
- #656B00
#656B00
oklch(50.5% 0.113 113.6)
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 #6B4FB1, closest first.
No curated palette has a color within ΔE 0.04 of #6B4FB1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.037
- Slate Blue #6A5ACD ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.051
- Light Indigo #6D5ACF ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.059
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.072
- Deep Lavender #8D5EB7 ΔE 0.073
Use #6B4FB1 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.