#7555C9
Closest named color: Light Indigo (#6D5ACF). oklch(54.2% 0.173 292.4), rgb(117, 85, 201).
Aa
White text reads best on this color (5.38:1).
About this color
#7555C9 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.173 and its hue 292°. 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 5.38:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #7555C9 |
| RGB | rgb(117, 85, 201) |
| HSL | hsl(257, 52%, 56%) |
| OKLCH | oklch(54.2% 0.173 292.4) |
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 #7555C9 | 5.38:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #7555C9 | 3.89:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #7555C9 text on white | 5.38:1 | AA | Lc 76.5 | Fine for body text |
| #7555C9 text on black | 3.89:1 | AA large text | Lc -25.3 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D5F4
oklch(88.6% 0.042 291.4)
-
Step 300
300
#C1B8EF
oklch(80.9% 0.077 292.1)
-
Step 400
400
#A391E7
oklch(70.7% 0.124 292.5)
-
Step 500
500
#8E73E0
oklch(63% 0.16 292.6)
-
Step 600
600 (this color)
#7555C9
oklch(54.2% 0.173 292.4)
-
Step 700
700
#6648B2
oklch(49% 0.161 292.5)
-
Step 800
800
#533C90
oklch(42.7% 0.133 292.5)
-
Step 900
900
#443473
oklch(37.6% 0.104 292.4)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#7555C9 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) | #0A6CCD | 0.111 |
| Deuteranopia (no green cones) | #1A68C6 | 0.106 |
| Tritanopia (no blue cones) | #5E6E87 | 0.138 |
| Achromatopsia (no color) | #6A6A6A | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7555C9
#7555C9
oklch(54.2% 0.173 292.4)
- #717600
#717600
oklch(54.3% 0.121 112.7)
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 #7555C9, 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 0.021
- Iris #6258C4 ΔE 0.032
- Dark Periwinkle #665FD1 ΔE 0.033
- Purpley #8756E4 ΔE 0.051
- Bluey Purple #6241C7 ΔE 0.057
- Deep Lavender #8D5EB7 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.068
Use #7555C9 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.