#7557C4
Closest named color: Light Indigo (#6D5ACF). oklch(54.2% 0.163 292.8), rgb(117, 87, 196).
Aa
White text reads best on this color (5.36:1).
About this color
#7557C4 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.163 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.022 away. White text reads best on it, at 5.36:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #7557C4 |
| RGB | rgb(117, 87, 196) |
| HSL | hsl(257, 48%, 55%) |
| OKLCH | oklch(54.2% 0.163 292.8) |
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 #7557C4 | 5.36:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #7557C4 | 3.91:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #7557C4 text on white | 5.36:1 | AA | Lc 76.4 | Fine for body text |
| #7557C4 text on black | 3.91:1 | 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
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#D9D5F2
oklch(88.5% 0.04 291.9)
-
Step 300
300
#C2B8ED
oklch(80.9% 0.075 293.3)
-
Step 400
400
#A392E3
oklch(70.6% 0.117 292.8)
-
Step 500
500
#8E75DB
oklch(63.1% 0.15 292.9)
-
Step 600
600 (this color)
#7557C4
oklch(54.2% 0.163 292.8)
-
Step 700
700
#664AAD
oklch(49% 0.152 293)
-
Step 800
800
#533E8C
oklch(42.7% 0.124 292.8)
-
Step 900
900
#443570
oklch(37.6% 0.098 292.8)
-
Step 950
950
#282042
oklch(27.1% 0.062 292.6)
#7557C4 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) | #206CC8 | 0.102 |
| Deuteranopia (no green cones) | #2869C2 | 0.098 |
| Tritanopia (no blue cones) | #606E85 | 0.132 |
| Achromatopsia (no color) | #6B6B6B | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7557C4
#7557C4
oklch(54.2% 0.163 292.8)
- #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 #7557C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.022
- Slate Blue #6A5ACD ΔE 0.023
- Iris #6258C4 ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.052
- Purpley #8756E4 ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.062
- Amethyst #9B5FC0 ΔE 0.071
Use #7557C4 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.