#6E51B6
Closest named color: Iris (#6258C4). oklch(51.6% 0.154 293.5), rgb(110, 81, 182).
Aa
White text reads best on this color (5.97:1).
About this color
#6E51B6 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.154 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.031 away. White text reads best on it, at 5.97:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #6E51B6 |
| RGB | rgb(110, 81, 182) |
| HSL | hsl(257, 41%, 52%) |
| OKLCH | oklch(51.6% 0.154 293.5) |
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 #6E51B6 | 5.97:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #6E51B6 | 3.51:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #6E51B6 text on white | 5.97:1 | AA | Lc 79.6 | Fine for body text |
| #6E51B6 text on black | 3.51:1 | AA large text | Lc -22.2 | 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
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F3
oklch(88.6% 0.041 293.2)
-
Step 300
300
#C2B8ED
oklch(80.9% 0.075 293.3)
-
Step 400
400
#A492E4
oklch(70.8% 0.119 293.2)
-
Step 500
500
#8F74DC
oklch(63.1% 0.153 293.5)
-
Step 600
600
#7A5AC9
oklch(55.5% 0.166 293.6)
-
Step 700
700 (this color)
#6E51B6
oklch(51.6% 0.154 293.5)
-
Step 800
800
#543D8D
oklch(42.7% 0.127 293.5)
-
Step 900
900
#453570
oklch(37.7% 0.098 293.6)
-
Step 950
950
#281F42
oklch(26.9% 0.064 293.5)
#6E51B6 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) | #2065B9 | 0.098 |
| Deuteranopia (no green cones) | #2862B4 | 0.093 |
| Tritanopia (no blue cones) | #5C667B | 0.124 |
| Achromatopsia (no color) | #636363 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6E51B6
#6E51B6
oklch(51.6% 0.154 293.5)
- #686E00
#686E00
oklch(51.5% 0.115 113.5)
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 #6E51B6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.031
- Slate Blue #6A5ACD ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.051
- Bluey Purple #6241C7 ΔE 0.052
- Deep Lavender #8D5EB7 ΔE 0.065
- Blue With A Hint Of Purple #533CC6 ΔE 0.074
- Warm Blue #4B57DB ΔE 0.077
Use #6E51B6 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.