#6B57A4
Closest named color: Iris (#6258C4). oklch(51.2% 0.12 293.7), rgb(107, 87, 164).
Aa
White text reads best on this color (5.95:1).
About this color
#6B57A4 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.120 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.052 away. White text reads best on it, at 5.95:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.52:1 |
| White text | 5.95:1 |
Values
| HEX | #6B57A4 |
| RGB | rgb(107, 87, 164) |
| HSL | hsl(256, 31%, 49%) |
| OKLCH | oklch(51.2% 0.12 293.7) |
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 #6B57A4 | 5.95:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #6B57A4 | 3.52:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #6B57A4 text on white | 5.95:1 | AA | Lc 79.6 | Fine for body text |
| #6B57A4 text on black | 3.52:1 | 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
#F5F4FA
oklch(97% 0.008 293.9)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD6ED
oklch(88.6% 0.032 293.7)
-
Step 300
300
#C2BAE3
oklch(80.9% 0.058 294)
-
Step 400
400
#A396D5
oklch(70.8% 0.092 293.4)
-
Step 500
500
#8D7ACA
oklch(63% 0.119 293.6)
-
Step 600
600
#7862B7
oklch(55.6% 0.129 293.7)
-
Step 700
700 (this color)
#6B57A4
oklch(51.2% 0.12 293.7)
-
Step 800
800
#52437F
oklch(42.7% 0.098 293.3)
-
Step 900
900
#443966
oklch(37.8% 0.076 293.7)
-
Step 950
950
#28213C
oklch(26.9% 0.05 294.8)
#6B57A4 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) | #3D64A7 | 0.067 |
| Deuteranopia (no green cones) | #4062A2 | 0.064 |
| Tritanopia (no blue cones) | #5E6675 | 0.098 |
| Achromatopsia (no color) | #646464 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B57A4
#6B57A4
oklch(51.2% 0.12 293.7)
- #676D00
#676D00
oklch(51.2% 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 #6B57A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.052
- Muted Purple #805B87 ΔE 0.062
- Dusky Blue #475F94 ΔE 0.063
- Slate Blue #6A5ACD ΔE 0.064
- Twilight #4E518B ΔE 0.064
- Light Indigo #6D5ACF ΔE 0.067
- Deep Lavender #8D5EB7 ΔE 0.068
- Dusty Purple #825F87 ΔE 0.069
Use #6B57A4 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.