#570099
Closest named color: Chrysanthemum (#560BAD). oklch(37.9% 0.201 300.6), rgb(87, 0, 153).
Aa
White text reads best on this color (11.25:1).
About this color
#570099 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.201 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Chrysanthemum (#560BAD), ΔE 0.036 away. White text reads best on it, at 11.25:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.201) |
| Temperature | in between |
| Nearest name | Chrysanthemum (#560BAD) |
| Black text | 1.86:1 |
| White text | 11.25:1 |
Values
| HEX | #570099 |
| RGB | rgb(87, 0, 153) |
| HSL | hsl(274, 100%, 30%) |
| OKLCH | oklch(37.9% 0.201 300.6) |
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 #570099 | 11.25:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #570099 | 1.86:1 | Fails | Lc 10.1 | Not readable |
| #570099 text on white | 11.25:1 | AAA | Lc 93.8 | Preferred for body text |
| #570099 text on black | 1.86:1 | Fails | Lc -8.7 | 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
#EDE5FF
oklch(93.6% 0.036 299.7)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CCB0FF
oklch(80.9% 0.113 300.2)
-
Step 400
400
#B481FF
oklch(70.7% 0.182 300.5)
-
Step 500
500
#A458FF
oklch(63.2% 0.236 300.6)
-
Step 600
600
#9506FF
oklch(55.6% 0.294 300.6)
-
Step 700
700
#7E00D9
oklch(49.1% 0.261 300.7)
-
Step 800
800
#6700B4
oklch(42.6% 0.227 300.4)
-
Step 900
900 (this color)
#570099
oklch(37.9% 0.201 300.6)
-
Step 950
950
#320A59
oklch(26.9% 0.127 300.4)
#570099 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) | #003A9C | 0.129 |
| Deuteranopia (no green cones) | #003A97 | 0.130 |
| Tritanopia (no blue cones) | #473858 | 0.145 |
| Achromatopsia (no color) | #3B3B3B | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #570099
#570099
oklch(37.9% 0.201 300.6)
- #3C4900
#3C4900
oklch(38% 0.091 120.6)
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 #570099, closest first.
No curated palette has a color within ΔE 0.04 of #570099.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chrysanthemum #560BAD ΔE 0.036
- Imperial Purple #480CA8 ΔE 0.044
- Indigo #4B0082 ΔE 0.046
- Grape #7209B7 ΔE 0.074
- Rebecca Purple #663399 ΔE 0.075
- Royal Purple #4B006E ΔE 0.077
- Indigo Blue #3A18B1 ΔE 0.077
- Violet Blue #510AC9 ΔE 0.084
Use #570099 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.