#7551BB
Closest named color: Iris (#6258C4). oklch(52.6% 0.161 296.1), rgb(117, 81, 187).
Aa
White text reads best on this color (5.75:1).
About this color
#7551BB is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.161 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.036 away. White text reads best on it, at 5.75:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.65:1 |
| White text | 5.75:1 |
Values
| HEX | #7551BB |
| RGB | rgb(117, 81, 187) |
| HSL | hsl(260, 44%, 53%) |
| OKLCH | oklch(52.6% 0.161 296.1) |
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 #7551BB | 5.75:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #7551BB | 3.65:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #7551BB text on white | 5.75:1 | AA | Lc 78.5 | Fine for body text |
| #7551BB text on black | 3.65:1 | AA large text | Lc -23.3 | 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 600.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F1
oklch(88.4% 0.04 296.6)
-
Step 300
300
#C4B8EB
oklch(81% 0.072 295.5)
-
Step 400
400
#A791E0
oklch(70.7% 0.115 296.1)
-
Step 500
500
#9274D8
oklch(63.1% 0.148 295.7)
-
Step 600
600 (this color)
#7551BB
oklch(52.6% 0.161 296.1)
-
Step 700
700
#6A49AA
oklch(49% 0.15 296.1)
-
Step 800
800
#563D8A
oklch(42.7% 0.123 295.7)
-
Step 900
900
#47356E
oklch(37.8% 0.095 296.1)
-
Step 950
950
#291F41
oklch(26.9% 0.062 295.5)
#7551BB 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) | #1C67BF | 0.110 |
| Deuteranopia (no green cones) | #2A64B9 | 0.102 |
| Tritanopia (no blue cones) | #64677E | 0.126 |
| Achromatopsia (no color) | #666666 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7551BB
#7551BB
oklch(52.6% 0.161 296.1)
- #687200
#687200
oklch(52.5% 0.12 115.7)
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 #7551BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.049
- Bluey Purple #6241C7 ΔE 0.055
- Deep Lavender #8D5EB7 ΔE 0.056
- Purpley #8756E4 ΔE 0.070
- Purply #983FB2 ΔE 0.071
Use #7551BB 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.