#5550AF
Closest named color: Iris (#6258C4). oklch(48.7% 0.147 281.8), rgb(85, 80, 175).
Aa
White text reads best on this color (6.66:1).
About this color
#5550AF is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.147 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.043 away. White text reads best on it, at 6.66:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.15:1 |
| White text | 6.66:1 |
Values
| HEX | #5550AF |
| RGB | rgb(85, 80, 175) |
| HSL | hsl(243, 37%, 50%) |
| OKLCH | oklch(48.7% 0.147 281.8) |
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 #5550AF | 6.66:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #5550AF | 3.15:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #5550AF text on white | 6.66:1 | AA | Lc 82.6 | Fine for body text |
| #5550AF text on black | 3.15:1 | AA large text | Lc -19.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D4D7F3
oklch(88.6% 0.039 280.7)
-
Step 300
300
#B8BCEE
oklch(80.9% 0.071 281.1)
-
Step 400
400
#9597E6
oklch(70.6% 0.115 281.9)
-
Step 500
500
#7D7CDE
oklch(63.2% 0.145 281.9)
-
Step 600
600
#6763CC
oklch(55.7% 0.158 281.7)
-
Step 700
700 (this color)
#5550AF
oklch(48.7% 0.147 281.8)
-
Step 800
800
#46438F
oklch(42.7% 0.122 281.7)
-
Step 900
900
#3A3972
oklch(37.6% 0.095 281.6)
-
Step 950
950
#222243
oklch(27% 0.06 281.6)
#5550AF 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) | #1A60B2 | 0.067 |
| Deuteranopia (no green cones) | #0F59AD | 0.069 |
| Tritanopia (no blue cones) | #316578 | 0.125 |
| Achromatopsia (no color) | #5C5C5C | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5550AF
#5550AF
oklch(48.7% 0.147 281.8)
- #6C6100
#6C6100
oklch(48.8% 0.102 101.7)
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 #5550AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.043
- Bluey Purple #6241C7 ΔE 0.054
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Blueberry #464196 ΔE 0.060
- Twilight #4E518B ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.062
- Dusky Blue #475F94 ΔE 0.066
- Light Indigo #6D5ACF ΔE 0.067
Use #5550AF 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.