#7556BB
Closest named color: Slate Blue (#6A5ACD). oklch(53.4% 0.153 294.8), rgb(117, 86, 187).
Aa
White text reads best on this color (5.51:1).
About this color
#7556BB is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.153 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.033 away. White text reads best on it, at 5.51:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #7556BB |
| RGB | rgb(117, 86, 187) |
| HSL | hsl(258, 43%, 54%) |
| OKLCH | oklch(53.4% 0.153 294.8) |
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 #7556BB | 5.51:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #7556BB | 3.80:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #7556BB text on white | 5.51:1 | AA | Lc 77.3 | Fine for body text |
| #7556BB text on black | 3.80:1 | AA large text | Lc -24.5 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C3B8E9
oklch(80.8% 0.069 295.1)
-
Step 400
400
#A592DE
oklch(70.6% 0.111 294.9)
-
Step 500
500
#9076D5
oklch(63.1% 0.141 294.6)
-
Step 600
600 (this color)
#7556BB
oklch(53.4% 0.153 294.8)
-
Step 700
700
#684CA8
oklch(49.2% 0.142 294.6)
-
Step 800
800
#553E88
oklch(42.7% 0.119 295.2)
-
Step 900
900
#46366D
oklch(37.8% 0.092 295)
-
Step 950
950
#292040
oklch(27.1% 0.059 295.2)
#7556BB 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) | #2A6ABE | 0.099 |
| Deuteranopia (no green cones) | #3267B9 | 0.092 |
| Tritanopia (no blue cones) | #646B80 | 0.123 |
| Achromatopsia (no color) | #696969 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7556BB
#7556BB
oklch(53.4% 0.153 294.8)
- #6C7400
#6C7400
oklch(53.4% 0.12 114.5)
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 #7556BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.033
- Iris #6258C4 ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.034
- Dark Periwinkle #665FD1 ΔE 0.044
- Deep Lavender #8D5EB7 ΔE 0.049
- Bluey Purple #6241C7 ΔE 0.064
- Purpley #8756E4 ΔE 0.069
- Amethyst #9B5FC0 ΔE 0.072
Use #7556BB 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.