#55207D
Closest named color: Indigo (#4B0082). oklch(37.3% 0.15 306.4), rgb(85, 32, 125).
Aa
White text reads best on this color (11.11:1).
About this color
#55207D is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.150 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.047 away. White text reads best on it, at 11.11:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.88:1 |
| White text | 11.11:1 |
Values
| HEX | #55207D |
| RGB | rgb(85, 32, 125) |
| HSL | hsl(274, 59%, 31%) |
| OKLCH | oklch(37.3% 0.15 306.4) |
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 #55207D | 11.11:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #55207D | 1.88:1 | Fails | Lc 9.0 | Not readable |
| #55207D text on white | 11.11:1 | AAA | Lc 94.9 | Preferred for body text |
| #55207D text on black | 1.88:1 | Fails | Lc -7.7 | 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
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#EFE5FC
oklch(93.7% 0.032 305.3)
-
Step 200
200
#E3CFFA
oklch(88.4% 0.062 306.2)
-
Step 300
300
#D3ADFA
oklch(80.8% 0.113 306.6)
-
Step 400
400
#BD7EF7
oklch(70.7% 0.179 306.4)
-
Step 500
500
#AD55F4
oklch(63% 0.231 306.3)
-
Step 600
600
#992FE2
oklch(55.5% 0.25 306.4)
-
Step 700
700
#831EC5
oklch(49.2% 0.233 306.3)
-
Step 800
800
#6A1E9F
oklch(42.7% 0.192 306.2)
-
Step 900
900 (this color)
#55207D
oklch(37.3% 0.15 306.4)
-
Step 950
950
#32154A
oklch(26.9% 0.096 306.1)
#55207D 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) | #003A80 | 0.118 |
| Deuteranopia (no green cones) | #003C7B | 0.120 |
| Tritanopia (no blue cones) | #4E364C | 0.107 |
| Achromatopsia (no color) | #3B3B3B | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55207D
#55207D
oklch(37.3% 0.15 306.4)
- #334900
#334900
oklch(37.3% 0.096 126.7)
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 #55207D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.047
- Royal Purple #4B006E ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.069
- Rebecca Purple #663399 ΔE 0.069
- Grape Purple #5D1451 ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.081
- Imperial Purple #480CA8 ΔE 0.082
- Blueberry #464196 ΔE 0.084
Use #55207D 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.