#570198
Closest named color: Chrysanthemum (#560BAD). oklch(37.8% 0.2 300.8), rgb(87, 1, 152).
Aa
White text reads best on this color (11.27:1).
About this color
#570198 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.200 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Chrysanthemum (#560BAD), ΔE 0.038 away. White text reads best on it, at 11.27:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.200) |
| Temperature | in between |
| Nearest name | Chrysanthemum (#560BAD) |
| Black text | 1.86:1 |
| White text | 11.27:1 |
Values
| HEX | #570198 |
| RGB | rgb(87, 1, 152) |
| HSL | hsl(274, 99%, 30%) |
| OKLCH | oklch(37.8% 0.2 300.8) |
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 #570198 | 11.27:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #570198 | 1.86:1 | Fails | Lc 10.0 | Not readable |
| #570198 text on white | 11.27:1 | AAA | Lc 93.9 | Preferred for body text |
| #570198 text on black | 1.86:1 | Fails | Lc -8.6 | Not readable |
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 900.
-
Step 50
50
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EEE5FF
oklch(93.7% 0.036 301.4)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B581FF
oklch(70.8% 0.182 300.9)
-
Step 500
500
#A457FF
oklch(63.1% 0.238 300.8)
-
Step 600
600
#9602FF
oklch(55.6% 0.295 300.9)
-
Step 700
700
#7E00D9
oklch(49.1% 0.261 300.7)
-
Step 800
800
#6800B4
oklch(42.8% 0.227 300.9)
-
Step 900
900 (this color)
#570198
oklch(37.8% 0.2 300.8)
-
Step 950
950
#320B59
oklch(27% 0.126 300.3)
#570198 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) | #003A9B | 0.129 |
| Deuteranopia (no green cones) | #003A96 | 0.130 |
| Tritanopia (no blue cones) | #473857 | 0.145 |
| Achromatopsia (no color) | #3B3B3B | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #570198
#570198
oklch(37.8% 0.2 300.8)
- #3B4800
#3B4800
oklch(37.7% 0.09 120.7)
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 #570198, closest first.
No curated palette has a color within ΔE 0.04 of #570198.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chrysanthemum #560BAD ΔE 0.038
- Indigo #4B0082 ΔE 0.044
- Imperial Purple #480CA8 ΔE 0.045
- Rebecca Purple #663399 ΔE 0.074
- Grape #7209B7 ΔE 0.075
- Royal Purple #4B006E ΔE 0.075
- Indigo Blue #3A18B1 ΔE 0.078
- Violet Blue #510AC9 ΔE 0.086
Use #570198 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.