#553FB0
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(45.8% 0.171 286.5), rgb(85, 63, 176).
Aa
White text reads best on this color (7.70:1).
About this color
#553FB0 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.171 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.036 away. White text reads best on it, at 7.70:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #553FB0 |
| RGB | rgb(85, 63, 176) |
| HSL | hsl(252, 47%, 47%) |
| OKLCH | oklch(45.8% 0.171 286.5) |
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 #553FB0 | 7.70:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #553FB0 | 2.72:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #553FB0 text on white | 7.70:1 | AAA | Lc 86.3 | Fine for body text |
| #553FB0 text on black | 2.72:1 | Fails | Lc -15.8 | 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
#BBB7FF
oklch(80.9% 0.101 286.5)
-
Step 400
400
#9A8EFE
oklch(70.6% 0.16 286.4)
-
Step 500
500
#856DFC
oklch(63.1% 0.204 286.7)
-
Step 600
600
#7150EC
oklch(55.7% 0.222 286.5)
-
Step 700
700
#5F3FCD
oklch(49.2% 0.206 286.4)
-
Step 800
800 (this color)
#553FB0
oklch(45.8% 0.171 286.5)
-
Step 900
900
#3F3083
oklch(37.6% 0.133 286.4)
-
Step 950
950
#251D4D
oklch(27% 0.085 286.9)
#553FB0 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) | #0056B4 | 0.087 |
| Deuteranopia (no green cones) | #0050AE | 0.084 |
| Tritanopia (no blue cones) | #335A72 | 0.140 |
| Achromatopsia (no color) | #535353 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553FB0
#553FB0
oklch(45.8% 0.171 286.5)
- #5F5A00
#5F5A00
oklch(45.8% 0.098 105.9)
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 #553FB0, 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 0.036
- Bluey Purple #6241C7 ΔE 0.043
- Blurple #5539CC ΔE 0.045
- Blueberry #464196 ΔE 0.049
- Rebecca Purple #663399 ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.064
- Purple Blue #5D21D0 ΔE 0.066
Use #553FB0 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.