#7555C7
Closest named color: Light Indigo (#6D5ACF). oklch(54.1% 0.17 292.8), rgb(117, 85, 199).
Aa
White text reads best on this color (5.41:1).
About this color
#7555C7 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.170 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 0.020 away. White text reads best on it, at 5.41:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.88:1 |
| White text | 5.41:1 |
Values
| HEX | #7555C7 |
| RGB | rgb(117, 85, 199) |
| HSL | hsl(257, 50%, 56%) |
| OKLCH | oklch(54.1% 0.17 292.8) |
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 #7555C7 | 5.41:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #7555C7 | 3.88:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #7555C7 text on white | 5.41:1 | AA | Lc 76.6 | Fine for body text |
| #7555C7 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C2B8EE
oklch(80.9% 0.076 293.1)
-
Step 400
400
#A391E6
oklch(70.6% 0.123 292.7)
-
Step 500
500
#8E74DE
oklch(63.1% 0.155 292.7)
-
Step 600
600 (this color)
#7555C7
oklch(54.1% 0.17 292.8)
-
Step 700
700
#6649B1
oklch(49.1% 0.158 292.4)
-
Step 800
800
#533C8F
oklch(42.6% 0.132 292.7)
-
Step 900
900
#443572
oklch(37.7% 0.101 292.2)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#7555C7 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) | #116BCB | 0.109 |
| Deuteranopia (no green cones) | #1E68C4 | 0.105 |
| Tritanopia (no blue cones) | #5F6E86 | 0.137 |
| Achromatopsia (no color) | #6A6A6A | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7555C7
#7555C7
oklch(54.1% 0.17 292.8)
- #707500
#707500
oklch(54% 0.12 112.7)
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 #7555C7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.020
- Slate Blue #6A5ACD ΔE 0.022
- Iris #6258C4 ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.034
- Purpley #8756E4 ΔE 0.053
- Deep Lavender #8D5EB7 ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.057
- Warm Blue #4B57DB ΔE 0.070
Use #7555C7 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.