#7555CF
Closest named color: Light Indigo (#6D5ACF). oklch(54.6% 0.18 291.4), rgb(117, 85, 207).
Aa
White text reads best on this color (5.30:1).
About this color
#7555CF is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.180 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.016 away. White text reads best on it, at 5.30:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #7555CF |
| RGB | rgb(117, 85, 207) |
| HSL | hsl(256, 56%, 57%) |
| OKLCH | oklch(54.6% 0.18 291.4) |
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 #7555CF | 5.30:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #7555CF | 3.95:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #7555CF text on white | 5.30:1 | AA | Lc 76.0 | Fine for body text |
| #7555CF text on black | 3.95:1 | AA large text | Lc -25.7 | 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
#E9E7F9
oklch(93.5% 0.024 291)
-
Step 200
200
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C0B8F2
oklch(80.9% 0.081 290.8)
-
Step 400
400
#A291EB
oklch(70.8% 0.13 291.4)
-
Step 500
500
#8C73E4
oklch(63.1% 0.165 291.1)
-
Step 600
600 (this color)
#7555CF
oklch(54.6% 0.18 291.4)
-
Step 700
700
#6547B6
oklch(49.1% 0.168 291.4)
-
Step 800
800
#523B93
oklch(42.6% 0.139 291.4)
-
Step 900
900
#443475
oklch(37.8% 0.107 291.8)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#7555CF 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) | #006DD3 | 0.112 |
| Deuteranopia (no green cones) | #0469CC | 0.111 |
| Tritanopia (no blue cones) | #5B708A | 0.145 |
| Achromatopsia (no color) | #6B6B6B | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7555CF
#7555CF
oklch(54.6% 0.18 291.4)
- #747600
#747600
oklch(54.6% 0.12 111)
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 #7555CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.016
- Slate Blue #6A5ACD ΔE 0.020
- Dark Periwinkle #665FD1 ΔE 0.031
- Iris #6258C4 ΔE 0.035
- Purpley #8756E4 ΔE 0.044
- Bluey Purple #6241C7 ΔE 0.058
- Medium Slate Blue #7B68EE ΔE 0.063
- Deep Lavender #8D5EB7 ΔE 0.063
Use #7555CF 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.