#6151B7
Closest named color: Iris (#6258C4). oklch(50.5% 0.155 286.6), rgb(97, 81, 183).
Aa
White text reads best on this color (6.23:1).
About this color
#6151B7 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.155 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 6.23:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.36:1 |
| White text | 6.23:1 |
Values
| HEX | #6151B7 |
| RGB | rgb(97, 81, 183) |
| HSL | hsl(249, 41%, 52%) |
| OKLCH | oklch(50.5% 0.155 286.6) |
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 #6151B7 | 6.23:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #6151B7 | 3.36:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #6151B7 text on white | 6.23:1 | AA | Lc 80.8 | Fine for body text |
| #6151B7 text on black | 3.36:1 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D6D6F4
oklch(88.5% 0.041 285.5)
-
Step 300
300
#BCBAEF
oklch(80.9% 0.074 286.3)
-
Step 400
400
#9B94E8
oklch(70.6% 0.121 286.7)
-
Step 500
500
#8478E0
oklch(63.1% 0.152 286.4)
-
Step 600
600
#6F5ECE
oklch(55.5% 0.167 286.6)
-
Step 700
700 (this color)
#6151B7
oklch(50.5% 0.155 286.6)
-
Step 800
800
#4C4090
oklch(42.7% 0.127 286.6)
-
Step 900
900
#3F3773
oklch(37.7% 0.099 286.7)
-
Step 950
950
#252144
oklch(27.2% 0.063 286.6)
#6151B7 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) | #1663BA | 0.083 |
| Deuteranopia (no green cones) | #145EB5 | 0.083 |
| Tritanopia (no blue cones) | #45687C | 0.130 |
| Achromatopsia (no color) | #616161 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6151B7
#6151B7
oklch(50.5% 0.155 286.6)
- #6C6800
#6C6800
oklch(50.5% 0.108 107.1)
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 #6151B7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Slate Blue #6A5ACD ΔE 0.042
- Bluey Purple #6241C7 ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.051
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Warm Blue #4B57DB ΔE 0.064
- Blurple #5539CC ΔE 0.066
Use #6151B7 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.