#7570CC
Closest named color: Dark Periwinkle (#665FD1). oklch(59.2% 0.138 283.8), rgb(117, 112, 204).
Aa
Black text reads best on this color (4.94:1).
About this color
#7570CC is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.138 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.052 away. Black text reads best on it, at 4.94:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #7570CC |
| RGB | rgb(117, 112, 204) |
| HSL | hsl(243, 47%, 62%) |
| OKLCH | oklch(59.2% 0.138 283.8) |
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 #7570CC | 4.24:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #7570CC | 4.94:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #7570CC text on white | 4.24:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #7570CC text on black | 4.94:1 | AA | Lc -32.5 | Non-text elements, placeholder text |
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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F6
oklch(93.7% 0.018 282.5)
-
Step 200
200
#D6D7F0
oklch(88.6% 0.034 283.9)
-
Step 300
300
#BBBCE8
oklch(80.9% 0.062 283.9)
-
Step 400
400
#9998DD
oklch(70.7% 0.1 284.2)
-
Step 500
500
#817DD3
oklch(63% 0.127 284.2)
-
Step 600
600 (this color)
#7570CC
oklch(59.2% 0.138 283.8)
-
Step 700
700
#5954A6
oklch(49.2% 0.128 283.4)
-
Step 800
800
#494586
oklch(42.7% 0.105 283.8)
-
Step 900
900
#3D3A6C
oklch(37.7% 0.084 284.3)
-
Step 950
950
#23223F
oklch(26.9% 0.053 283.8)
#7570CC 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) | #4D7ECF | 0.057 |
| Deuteranopia (no green cones) | #4978CA | 0.056 |
| Tritanopia (no blue cones) | #5A8394 | 0.119 |
| Achromatopsia (no color) | #7B7B7B | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7570CC
#7570CC
oklch(59.2% 0.138 283.8)
- #8B8000
#8B8000
oklch(59.1% 0.125 103.5)
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 #7570CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.052
- Medium Purple #9370DB ΔE 0.052
- Deep Lilac #966EBD ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.058
- Medium Slate Blue #7B68EE ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.059
- Deep Lavender #8D5EB7 ΔE 0.060
- Cornflower #6A79F7 ΔE 0.066
Use #7570CC 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.