#553FAF
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(45.8% 0.17 286.6), rgb(85, 63, 175).
Aa
White text reads best on this color (7.73:1).
About this color
#553FAF is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.170 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.037 away. White text reads best on it, at 7.73:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #553FAF |
| RGB | rgb(85, 63, 175) |
| HSL | hsl(252, 47%, 47%) |
| OKLCH | oklch(45.8% 0.17 286.6) |
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 #553FAF | 7.73:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #553FAF | 2.71:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #553FAF text on white | 7.73:1 | AAA | Lc 86.4 | Fine for body text |
| #553FAF text on black | 2.71:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D6D4FD
oklch(88.5% 0.056 287.4)
-
Step 300
300
#BBB7FE
oklch(80.8% 0.1 286.5)
-
Step 400
400
#9B8EFE
oklch(70.7% 0.16 286.9)
-
Step 500
500
#856DFC
oklch(63.1% 0.204 286.7)
-
Step 600
600
#7150EB
oklch(55.7% 0.221 286.6)
-
Step 700
700
#5F3FCC
oklch(49.1% 0.205 286.6)
-
Step 800
800 (this color)
#553FAF
oklch(45.8% 0.17 286.6)
-
Step 900
900
#3F3083
oklch(37.6% 0.133 286.4)
-
Step 950
950
#251D4D
oklch(27% 0.085 286.9)
#553FAF 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) | #0056B3 | 0.087 |
| Deuteranopia (no green cones) | #004FAD | 0.084 |
| Tritanopia (no blue cones) | #335A71 | 0.141 |
| Achromatopsia (no color) | #535353 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553FAF
#553FAF
oklch(45.8% 0.17 286.6)
- #5E5A00
#5E5A00
oklch(45.7% 0.098 106.7)
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 #553FAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.037
- Bluey Purple #6241C7 ΔE 0.044
- Blurple #5539CC ΔE 0.047
- Blueberry #464196 ΔE 0.047
- Rebecca Purple #663399 ΔE 0.052
- Majorelle Blue #3F37C9 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.062
- Purple Blue #5D21D0 ΔE 0.068
Use #553FAF 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.