#7A51C7
Closest named color: Light Indigo (#6D5ACF). oklch(53.9% 0.176 296), rgb(122, 81, 199).
Aa
White text reads best on this color (5.48:1).
About this color
#7A51C7 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.176 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 0.030 away. White text reads best on it, at 5.48:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #7A51C7 |
| RGB | rgb(122, 81, 199) |
| HSL | hsl(261, 51%, 55%) |
| OKLCH | oklch(53.9% 0.176 296) |
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 #7A51C7 | 5.48:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #7A51C7 | 3.82:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #7A51C7 text on white | 5.48:1 | AA | Lc 77.0 | Fine for body text |
| #7A51C7 text on black | 3.82:1 | AA large text | Lc -24.8 | 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
#C5B7EF
oklch(81% 0.079 296)
-
Step 400
400
#A88FE6
oklch(70.7% 0.127 296.2)
-
Step 500
500
#9471DF
oklch(63.2% 0.162 296.1)
-
Step 600
600 (this color)
#7A51C7
oklch(53.9% 0.176 296)
-
Step 700
700
#6B46B1
oklch(49.1% 0.163 295.7)
-
Step 800
800
#573A8F
oklch(42.7% 0.135 295.9)
-
Step 900
900
#483372
oklch(37.8% 0.105 296.4)
-
Step 950
950
#2A1E43
oklch(27% 0.067 296.6)
#7A51C7 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) | #006ACB | 0.124 |
| Deuteranopia (no green cones) | #1D67C4 | 0.116 |
| Tritanopia (no blue cones) | #676B84 | 0.139 |
| Achromatopsia (no color) | #696969 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A51C7
#7A51C7
oklch(53.9% 0.176 296)
- #6C7600
#6C7600
oklch(53.9% 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 #7A51C7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.032
- Iris #6258C4 ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.044
- Purpley #8756E4 ΔE 0.050
- Deep Lavender #8D5EB7 ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.057
- Purply #983FB2 ΔE 0.070
Use #7A51C7 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.