#5553A3
Closest named color: Twilight (#4E518B). oklch(48.5% 0.125 281.8), rgb(85, 83, 163).
Aa
White text reads best on this color (6.66:1).
About this color
#5553A3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.125 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.040 away. White text reads best on it, at 6.66:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.15:1 |
| White text | 6.66:1 |
Values
| HEX | #5553A3 |
| RGB | rgb(85, 83, 163) |
| HSL | hsl(242, 33%, 48%) |
| OKLCH | oklch(48.5% 0.125 281.8) |
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 #5553A3 | 6.66:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #5553A3 | 3.15:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #5553A3 text on white | 6.66:1 | AA | Lc 82.7 | Fine for body text |
| #5553A3 text on black | 3.15:1 | AA large text | Lc -19.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D5D7F0
oklch(88.5% 0.034 282)
-
Step 300
300
#BABDE8
oklch(81% 0.061 281.8)
-
Step 400
400
#9699DC
oklch(70.6% 0.098 281.6)
-
Step 500
500
#7E7FD2
oklch(63.1% 0.123 281.7)
-
Step 600
600
#6867BF
oklch(55.7% 0.134 281.7)
-
Step 700
700 (this color)
#5553A3
oklch(48.5% 0.125 281.8)
-
Step 800
800
#474686
oklch(42.8% 0.104 281.8)
-
Step 900
900
#3B3B6B
oklch(37.7% 0.081 281.8)
-
Step 950
950
#22233F
oklch(27% 0.052 280.8)
#5553A3 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) | #305FA6 | 0.051 |
| Deuteranopia (no green cones) | #2B59A1 | 0.052 |
| Tritanopia (no blue cones) | #3A6473 | 0.108 |
| Achromatopsia (no color) | #5C5C5C | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5553A3
#5553A3
oklch(48.5% 0.125 281.8)
- #6B6000
#6B6000
oklch(48.4% 0.101 101.6)
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 #5553A3, closest first.
No curated palette has a color within ΔE 0.04 of #5553A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.040
- Dusky Blue #475F94 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.051
- Iris #6258C4 ΔE 0.057
- Blueberry #464196 ΔE 0.057
- Dusk #4E5481 ΔE 0.058
- French Blue #436BAD ΔE 0.065
- Dusk Blue #26538D ΔE 0.070
Use #5553A3 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.