#7555D4
Closest named color: Light Indigo (#6D5ACF). oklch(55% 0.187 290.5), rgb(117, 85, 212).
Aa
White text reads best on this color (5.24:1).
About this color
#7555D4 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.187 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.018 away. White text reads best on it, at 5.24:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #7555D4 |
| RGB | rgb(117, 85, 212) |
| HSL | hsl(255, 60%, 58%) |
| OKLCH | oklch(55% 0.187 290.5) |
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 #7555D4 | 5.24:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #7555D4 | 4.00:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #7555D4 text on white | 5.24:1 | AA | Lc 75.6 | Fine for body text |
| #7555D4 text on black | 4.00:1 | AA large text | Lc -26.1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7F9
oklch(93.5% 0.024 291)
-
Step 200
200
#D8D4F6
oklch(88.4% 0.047 290.8)
-
Step 300
300
#C0B8F4
oklch(81% 0.084 290.5)
-
Step 400
400
#A190EE
oklch(70.7% 0.135 290.8)
-
Step 500
500
#8B72E8
oklch(63.1% 0.172 290.4)
-
Step 600
600 (this color)
#7555D4
oklch(55% 0.187 290.5)
-
Step 700
700
#6446BA
oklch(49.1% 0.174 290.4)
-
Step 800
800
#513A96
oklch(42.6% 0.144 290.5)
-
Step 900
900
#433378
oklch(37.7% 0.113 290.6)
-
Step 950
950
#271F46
oklch(27.1% 0.07 290.3)
#7555D4 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) | #006ED8 | 0.112 |
| Deuteranopia (no green cones) | #0069D1 | 0.111 |
| Tritanopia (no blue cones) | #58728C | 0.153 |
| Achromatopsia (no color) | #6C6C6C | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7555D4
#7555D4
oklch(55% 0.187 290.5)
- #767700
#767700
oklch(55% 0.12 110.4)
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 #7555D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.018
- Slate Blue #6A5ACD ΔE 0.023
- Dark Periwinkle #665FD1 ΔE 0.031
- Purpley #8756E4 ΔE 0.039
- Iris #6258C4 ΔE 0.039
- Medium Slate Blue #7B68EE ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.059
- Warm Blue #4B57DB ΔE 0.063
Use #7555D4 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.