#7550DD
Closest named color: Light Indigo (#6D5ACF). oklch(54.9% 0.204 290.1), rgb(117, 80, 221).
Aa
White text reads best on this color (5.31:1).
About this color
#7550DD is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.204 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.033 away. White text reads best on it, at 5.31:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.204) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.94:1 |
| White text | 5.31:1 |
Values
| HEX | #7550DD |
| RGB | rgb(117, 80, 221) |
| HSL | hsl(256, 67%, 59%) |
| OKLCH | oklch(54.9% 0.204 290.1) |
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 #7550DD | 5.31:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #7550DD | 3.94:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #7550DD text on white | 5.31:1 | AA | Lc 75.9 | Fine for body text |
| #7550DD text on black | 3.94:1 | AA large text | Lc -25.8 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4F9
oklch(88.5% 0.051 290.3)
-
Step 300
300
#BFB7F8
oklch(80.9% 0.091 289.8)
-
Step 400
400
#A08FF5
oklch(70.8% 0.146 289.8)
-
Step 500
500
#8B6FF1
oklch(63.2% 0.187 289.9)
-
Step 600
600 (this color)
#7550DD
oklch(54.9% 0.204 290.1)
-
Step 700
700
#6441C2
oklch(49% 0.191 290)
-
Step 800
800
#52379D
oklch(42.7% 0.157 290.3)
-
Step 900
900
#43317D
oklch(37.7% 0.123 290.1)
-
Step 950
950
#271E49
oklch(27.1% 0.077 289.9)
#7550DD 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) | #006EE1 | 0.115 |
| Deuteranopia (no green cones) | #0068DA | 0.113 |
| Tritanopia (no blue cones) | #54728F | 0.166 |
| Achromatopsia (no color) | #6B6B6B | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7550DD
#7550DD
oklch(54.9% 0.204 290.1)
- #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 #7550DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.033
- Purpley #8756E4 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.043
- Iris #6258C4 ΔE 0.051
- Bluey Purple #6241C7 ΔE 0.058
- Medium Slate Blue #7B68EE ΔE 0.059
- Burple #6832E3 ΔE 0.060
Use #7550DD 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.