#7553DC
Closest named color: Light Indigo (#6D5ACF). oklch(55.3% 0.199 289.7), rgb(117, 83, 220).
Aa
White text reads best on this color (5.21:1).
About this color
#7553DC is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.199 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.028 away. White text reads best on it, at 5.21:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #7553DC |
| RGB | rgb(117, 83, 220) |
| HSL | hsl(255, 66%, 59%) |
| OKLCH | oklch(55.3% 0.199 289.7) |
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 #7553DC | 5.21:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #7553DC | 4.02:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #7553DC text on white | 5.21:1 | AA | Lc 75.4 | Fine for body text |
| #7553DC text on black | 4.02:1 | AA large text | Lc -26.3 | 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
#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
#BFB7F7
oklch(80.8% 0.09 290)
-
Step 400
400
#A08FF3
oklch(70.6% 0.144 290)
-
Step 500
500
#8A70EF
oklch(63.1% 0.183 289.5)
-
Step 600
600 (this color)
#7553DC
oklch(55.3% 0.199 289.7)
-
Step 700
700
#6343C0
oklch(49% 0.186 289.5)
-
Step 800
800
#51389B
oklch(42.6% 0.154 289.9)
-
Step 900
900
#42327B
oklch(37.6% 0.119 289.5)
-
Step 950
950
#271E48
oklch(27% 0.075 290.3)
#7553DC 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) | #006FE0 | 0.113 |
| Deuteranopia (no green cones) | #0069D9 | 0.111 |
| Tritanopia (no blue cones) | #547390 | 0.161 |
| Achromatopsia (no color) | #6C6C6C | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7553DC
#7553DC
oklch(55.3% 0.199 289.7)
- #787700
#787700
oklch(55.2% 0.12 109.2)
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 #7553DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.028
- Slate Blue #6A5ACD ΔE 0.032
- Purpley #8756E4 ΔE 0.034
- Dark Periwinkle #665FD1 ΔE 0.038
- Iris #6258C4 ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.054
- Bluey Purple #6241C7 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.062
Use #7553DC 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.