#550082
Closest named color: Indigo (#4B0082). oklch(35.3% 0.181 307.3), rgb(85, 0, 130).
Aa
White text reads best on this color (12.29:1).
About this color
#550082 is a dark, vivid purple. In OKLCH its lightness is 35%, its chroma 0.181 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.023 away. White text reads best on it, at 12.29:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.70:1 |
| White text | 12.29:1 |
Values
| HEX | #550082 |
| RGB | rgb(85, 0, 130) |
| HSL | hsl(279, 100%, 25%) |
| OKLCH | oklch(35.3% 0.181 307.3) |
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 #550082 | 12.29:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #550082 | 1.70:1 | Fails | Lc 7.9 | Not readable |
| #550082 text on white | 12.29:1 | AAA | Lc 96.0 | Preferred for body text |
| #550082 text on black | 1.70:1 | Fails | Lc 0.0 | 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
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#F1E3FF
oklch(93.5% 0.04 308)
-
Step 200
200
#E6CDFF
oklch(88.5% 0.073 307.6)
-
Step 300
300
#D6ABFF
oklch(80.9% 0.124 307.3)
-
Step 400
400
#C278FF
oklch(70.7% 0.199 307.4)
-
Step 500
500
#B448FF
oklch(63.2% 0.258 307.4)
-
Step 600
600
#A000F0
oklch(55.6% 0.285 307.1)
-
Step 700
700
#8700CB
oklch(49% 0.252 307.2)
-
Step 800
800
#6F00A8
oklch(42.6% 0.219 307.2)
-
Step 900
900 (this color)
#550082
oklch(35.3% 0.181 307.3)
-
Step 950
950
#360E51
oklch(27.1% 0.115 307.4)
#550082 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) | #003385 | 0.134 |
| Deuteranopia (no green cones) | #003580 | 0.136 |
| Tritanopia (no blue cones) | #4D2D4A | 0.124 |
| Achromatopsia (no color) | #353535 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #550082
#550082
oklch(35.3% 0.181 307.3)
- #2E4400
#2E4400
oklch(35.5% 0.092 127.5)
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 #550082, closest first.
No curated palette has a color within ΔE 0.04 of #550082.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.023
- Royal Purple #4B006E ΔE 0.040
- Chrysanthemum #560BAD ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.075
- Plum Purple #4E0550 ΔE 0.088
- Rebecca Purple #663399 ΔE 0.090
- Grape Purple #5D1451 ΔE 0.093
- Purple #800080 ΔE 0.097
Use #550082 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.