#6B51A7
Closest named color: Iris (#6258C4). oklch(50.3% 0.133 295.1), rgb(107, 81, 167).
Aa
White text reads best on this color (6.24:1).
About this color
#6B51A7 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.133 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.048 away. White text reads best on it, at 6.24:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.36:1 |
| White text | 6.24:1 |
Values
| HEX | #6B51A7 |
| RGB | rgb(107, 81, 167) |
| HSL | hsl(258, 35%, 49%) |
| OKLCH | oklch(50.3% 0.133 295.1) |
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 #6B51A7 | 6.24:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #6B51A7 | 3.36:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #6B51A7 text on white | 6.24:1 | AA | Lc 80.9 | Fine for body text |
| #6B51A7 text on black | 3.36:1 | AA large text | Lc -20.9 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EF
oklch(88.5% 0.036 294.5)
-
Step 300
300
#C3B9E7
oklch(80.9% 0.065 294.9)
-
Step 400
400
#A593DA
oklch(70.6% 0.104 295.3)
-
Step 500
500
#9077D0
oklch(63% 0.132 295.3)
-
Step 600
600
#7B5FBD
oklch(55.7% 0.142 295.1)
-
Step 700
700 (this color)
#6B51A7
oklch(50.3% 0.133 295.1)
-
Step 800
800
#544084
oklch(42.7% 0.11 294.9)
-
Step 900
900
#45376A
oklch(37.7% 0.086 294.6)
-
Step 950
950
#29203E
oklch(27% 0.055 296.3)
#6B51A7 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) | #3061AA | 0.083 |
| Deuteranopia (no green cones) | #365FA5 | 0.078 |
| Tritanopia (no blue cones) | #5D6274 | 0.107 |
| Achromatopsia (no color) | #606060 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B51A7
#6B51A7
oklch(50.3% 0.133 295.1)
- #626B00
#626B00
oklch(50.3% 0.114 115.4)
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 #6B51A7, closest first.
No curated palette has a color within ΔE 0.04 of #6B51A7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.064
- Twilight #4E518B ΔE 0.066
- Bluey Purple #6241C7 ΔE 0.067
- Dark Periwinkle #665FD1 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.072
- Deep Lavender #8D5EB7 ΔE 0.073
Use #6B51A7 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.