#7557C1
Closest named color: Light Indigo (#6D5ACF). oklch(54% 0.159 293.4), rgb(117, 87, 193).
Aa
White text reads best on this color (5.39:1).
About this color
#7557C1 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.159 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 0.025 away. White text reads best on it, at 5.39:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.88:1 |
| White text | 5.39:1 |
Values
| HEX | #7557C1 |
| RGB | rgb(117, 87, 193) |
| HSL | hsl(257, 46%, 55%) |
| OKLCH | oklch(54% 0.159 293.4) |
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 #7557C1 | 5.39:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #7557C1 | 3.88:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #7557C1 text on white | 5.39:1 | AA | Lc 76.6 | Fine for body text |
| #7557C1 text on black | 3.88:1 | AA large text | Lc -25.1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C2B8EB
oklch(80.8% 0.072 293.7)
-
Step 400
400
#A492E1
oklch(70.6% 0.115 293.7)
-
Step 500
500
#8F75D9
oklch(63.1% 0.147 293.7)
-
Step 600
600 (this color)
#7557C1
oklch(54% 0.159 293.4)
-
Step 700
700
#674BAB
oklch(49.1% 0.148 293.7)
-
Step 800
800
#533E8B
oklch(42.7% 0.123 293)
-
Step 900
900
#45366F
oklch(37.8% 0.095 293.5)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#7557C1 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) | #256BC5 | 0.100 |
| Deuteranopia (no green cones) | #2D68BF | 0.095 |
| Tritanopia (no blue cones) | #616D83 | 0.129 |
| Achromatopsia (no color) | #6A6A6A | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7557C1
#7557C1
oklch(54% 0.159 293.4)
- #6F7500
#6F7500
oklch(53.9% 0.12 113.3)
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 #7557C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.025
- Slate Blue #6A5ACD ΔE 0.026
- Iris #6258C4 ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.036
- Deep Lavender #8D5EB7 ΔE 0.050
- Purpley #8756E4 ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.063
- Amethyst #9B5FC0 ΔE 0.071
Use #7557C1 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.