#7555CD
Closest named color: Light Indigo (#6D5ACF). oklch(54.5% 0.178 291.7), rgb(117, 85, 205).
Aa
White text reads best on this color (5.33:1).
About this color
#7555CD is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.178 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 0.016 away. White text reads best on it, at 5.33:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #7555CD |
| RGB | rgb(117, 85, 205) |
| HSL | hsl(256, 55%, 57%) |
| OKLCH | oklch(54.5% 0.178 291.7) |
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 #7555CD | 5.33:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #7555CD | 3.93:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #7555CD text on white | 5.33:1 | AA | Lc 76.2 | Fine for body text |
| #7555CD text on black | 3.93:1 | AA large text | Lc -25.6 | 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
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C1B8F1
oklch(81% 0.08 291.7)
-
Step 400
400
#A291EA
oklch(70.7% 0.128 291.5)
-
Step 500
500
#8D73E3
oklch(63.1% 0.164 291.7)
-
Step 600
600 (this color)
#7555CD
oklch(54.5% 0.178 291.7)
-
Step 700
700
#6548B5
oklch(49.2% 0.165 291.4)
-
Step 800
800
#523C92
oklch(42.7% 0.136 291.4)
-
Step 900
900
#443475
oklch(37.8% 0.107 291.8)
-
Step 950
950
#271F44
oklch(26.9% 0.067 291.2)
#7555CD 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) | #006DD1 | 0.113 |
| Deuteranopia (no green cones) | #0E69CA | 0.110 |
| Tritanopia (no blue cones) | #5C7089 | 0.144 |
| Achromatopsia (no color) | #6B6B6B | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7555CD
#7555CD
oklch(54.5% 0.178 291.7)
- #737600
#737600
oklch(54.5% 0.12 111.5)
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 #7555CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.016
- Slate Blue #6A5ACD ΔE 0.020
- Dark Periwinkle #665FD1 ΔE 0.031
- Iris #6258C4 ΔE 0.034
- Purpley #8756E4 ΔE 0.046
- Bluey Purple #6241C7 ΔE 0.057
- Deep Lavender #8D5EB7 ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.065
Use #7555CD 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.