#6E51A3
Closest named color: Iris (#6258C4). oklch(50.4% 0.128 298), rgb(110, 81, 163).
Aa
White text reads best on this color (6.23:1).
About this color
#6E51A3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.128 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.055 away. White text reads best on it, at 6.23:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.36:1 |
| White text | 6.23:1 |
Values
| HEX | #6E51A3 |
| RGB | rgb(110, 81, 163) |
| HSL | hsl(261, 34%, 48%) |
| OKLCH | oklch(50.4% 0.128 298) |
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 #6E51A3 | 6.23:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #6E51A3 | 3.36:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #6E51A3 text on white | 6.23:1 | AA | Lc 80.9 | Fine for body text |
| #6E51A3 text on black | 3.36:1 | AA large text | Lc -21.0 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F5
oklch(93.7% 0.018 296.6)
-
Step 200
200
#DBD5EE
oklch(88.5% 0.035 296.7)
-
Step 300
300
#C5B9E4
oklch(81% 0.061 297.8)
-
Step 400
400
#A893D7
oklch(70.7% 0.1 298)
-
Step 500
500
#9377CC
oklch(63.1% 0.127 297.8)
-
Step 600
600
#7E5EB9
oklch(55.6% 0.139 298)
-
Step 700
700 (this color)
#6E51A3
oklch(50.4% 0.128 298)
-
Step 800
800
#574081
oklch(42.8% 0.106 298.1)
-
Step 900
900
#473767
oklch(37.7% 0.081 297.7)
-
Step 950
950
#2A203D
oklch(27% 0.054 298.6)
#6E51A3 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) | #3561A6 | 0.084 |
| Deuteranopia (no green cones) | #3C60A1 | 0.078 |
| Tritanopia (no blue cones) | #636172 | 0.102 |
| Achromatopsia (no color) | #616161 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6E51A3
#6E51A3
oklch(50.4% 0.128 298)
- #5F6C00
#5F6C00
oklch(50.3% 0.117 117.7)
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 #6E51A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.055
- Twilight #4E518B ΔE 0.066
- Muted Purple #805B87 ΔE 0.067
- Slate Blue #6A5ACD ΔE 0.067
- Light Eggplant #894585 ΔE 0.069
- Light Indigo #6D5ACF ΔE 0.070
- Deep Lavender #8D5EB7 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.072
Use #6E51A3 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.