#7551CB
Closest named color: Light Indigo (#6D5ACF). oklch(53.7% 0.181 292.9), rgb(117, 81, 203).
Aa
White text reads best on this color (5.53:1).
About this color
#7551CB is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.181 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.023 away. White text reads best on it, at 5.53:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #7551CB |
| RGB | rgb(117, 81, 203) |
| HSL | hsl(258, 54%, 56%) |
| OKLCH | oklch(53.7% 0.181 292.9) |
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 #7551CB | 5.53:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #7551CB | 3.79:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #7551CB text on white | 5.53:1 | AA | Lc 77.2 | Fine for body text |
| #7551CB text on black | 3.79:1 | AA large text | Lc -24.5 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DAD4F5
oklch(88.5% 0.045 293.8)
-
Step 300
300
#C2B7F1
oklch(80.8% 0.082 293.2)
-
Step 400
400
#A490EA
oklch(70.7% 0.13 293)
-
Step 500
500
#8F72E3
oklch(63.1% 0.165 292.9)
-
Step 600
600 (this color)
#7551CB
oklch(53.7% 0.181 292.9)
-
Step 700
700
#6746B5
oklch(49% 0.168 292.9)
-
Step 800
800
#543A93
oklch(42.6% 0.14 293)
-
Step 900
900
#453375
oklch(37.7% 0.109 293)
-
Step 950
950
#281F45
oklch(27.1% 0.069 292.1)
#7551CB 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) | #006ACF | 0.116 |
| Deuteranopia (no green cones) | #0066C8 | 0.116 |
| Tritanopia (no blue cones) | #5D6C86 | 0.145 |
| Achromatopsia (no color) | #686868 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7551CB
#7551CB
oklch(53.7% 0.181 292.9)
- #6F7400
#6F7400
oklch(53.7% 0.119 112.7)
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 #7551CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.023
- Slate Blue #6A5ACD ΔE 0.025
- Iris #6258C4 ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.038
- Purpley #8756E4 ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.050
- Deep Lavender #8D5EB7 ΔE 0.065
- Warm Blue #4B57DB ΔE 0.068
Use #7551CB 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.