#7559BB
Closest named color: Slate Blue (#6A5ACD). oklch(54% 0.149 294), rgb(117, 89, 187).
Aa
White text reads best on this color (5.38:1).
About this color
#7559BB is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.149 and its hue 294°. 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 5.38:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.90:1 |
| White text | 5.38:1 |
Values
| HEX | #7559BB |
| RGB | rgb(117, 89, 187) |
| HSL | hsl(257, 42%, 54%) |
| OKLCH | oklch(54% 0.149 294) |
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 #7559BB | 5.38:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #7559BB | 3.90:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #7559BB text on white | 5.38:1 | AA | Lc 76.6 | Fine for body text |
| #7559BB text on black | 3.90:1 | AA large text | Lc -25.2 | 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
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C2B9E8
oklch(80.9% 0.066 293.6)
-
Step 400
400
#A493DD
oklch(70.6% 0.108 294)
-
Step 500
500
#8F77D3
oklch(63.1% 0.136 294.2)
-
Step 600
600 (this color)
#7559BB
oklch(54% 0.149 294)
-
Step 700
700
#674DA6
oklch(49.1% 0.138 294.2)
-
Step 800
800
#544087
oklch(42.9% 0.114 294)
-
Step 900
900
#45376C
oklch(37.8% 0.089 293.9)
-
Step 950
950
#28203F
oklch(26.9% 0.057 294.1)
#7559BB 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) | #316BBE | 0.091 |
| Deuteranopia (no green cones) | #3769B9 | 0.087 |
| Tritanopia (no blue cones) | #646D81 | 0.120 |
| Achromatopsia (no color) | #6A6A6A | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7559BB
#7559BB
oklch(54% 0.149 294)
- #6E7600
#6E7600
oklch(54.1% 0.122 114.4)
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 #7559BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.033
- Light Indigo #6D5ACF ΔE 0.034
- Iris #6258C4 ΔE 0.034
- Dark Periwinkle #665FD1 ΔE 0.042
- Deep Lavender #8D5EB7 ΔE 0.045
- Amethyst #9B5FC0 ΔE 0.069
- Bluey Purple #6241C7 ΔE 0.070
- Purpley #8756E4 ΔE 0.070
Use #7559BB 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.