#7B51CA
Closest named color: Light Indigo (#6D5ACF). oklch(54.2% 0.18 295.8), rgb(123, 81, 202).
Aa
White text reads best on this color (5.42:1).
About this color
#7B51CA is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.180 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.029 away. White text reads best on it, at 5.42:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.87:1 |
| White text | 5.42:1 |
Values
| HEX | #7B51CA |
| RGB | rgb(123, 81, 202) |
| HSL | hsl(261, 53%, 55%) |
| OKLCH | oklch(54.2% 0.18 295.8) |
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 #7B51CA | 5.42:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #7B51CA | 3.87:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #7B51CA text on white | 5.42:1 | AA | Lc 76.6 | Fine for body text |
| #7B51CA text on black | 3.87:1 | AA large text | Lc -25.1 | 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 600.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DBD4F4
oklch(88.5% 0.044 295.5)
-
Step 300
300
#C5B6F0
oklch(80.9% 0.082 296.4)
-
Step 400
400
#A88FE8
oklch(70.8% 0.129 295.9)
-
Step 500
500
#9470E1
oklch(63.1% 0.166 296)
-
Step 600
600 (this color)
#7B51CA
oklch(54.2% 0.18 295.8)
-
Step 700
700
#6B45B3
oklch(49.1% 0.167 295.5)
-
Step 800
800
#573991
oklch(42.6% 0.139 295.6)
-
Step 900
900
#483273
oklch(37.7% 0.108 296.5)
-
Step 950
950
#2A1E44
oklch(27% 0.069 296)
#7B51CA 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) | #006BCE | 0.125 |
| Deuteranopia (no green cones) | #1868C7 | 0.119 |
| Tritanopia (no blue cones) | #676B86 | 0.140 |
| Achromatopsia (no color) | #6A6A6A | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7B51CA
#7B51CA
oklch(54.2% 0.18 295.8)
- #6D7700
#6D7700
oklch(54.2% 0.123 115.5)
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 #7B51CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.029
- Slate Blue #6A5ACD ΔE 0.033
- Iris #6258C4 ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.044
- Purpley #8756E4 ΔE 0.046
- Deep Lavender #8D5EB7 ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.058
- Purply #983FB2 ΔE 0.071
Use #7B51CA 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.