#5553AA
Closest named color: Iris (#6258C4). oklch(48.9% 0.135 281.2), rgb(85, 83, 170).
Aa
White text reads best on this color (6.55:1).
About this color
#5553AA is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.135 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.047 away. White text reads best on it, at 6.55:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.20:1 |
| White text | 6.55:1 |
Values
| HEX | #5553AA |
| RGB | rgb(85, 83, 170) |
| HSL | hsl(241, 34%, 50%) |
| OKLCH | oklch(48.9% 0.135 281.2) |
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 #5553AA | 6.55:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #5553AA | 3.20:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #5553AA text on white | 6.55:1 | AA | Lc 82.2 | Fine for body text |
| #5553AA text on black | 3.20:1 | AA large text | Lc -19.7 | 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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F1
oklch(88.5% 0.036 280.4)
-
Step 300
300
#B9BCEB
oklch(80.9% 0.066 281.9)
-
Step 400
400
#9599E1
oklch(70.8% 0.105 280.9)
-
Step 500
500
#7C7ED8
oklch(63.1% 0.134 280.9)
-
Step 600
600
#6765C5
oklch(55.6% 0.145 281.5)
-
Step 700
700 (this color)
#5553AA
oklch(48.9% 0.135 281.2)
-
Step 800
800
#46458A
oklch(42.8% 0.112 281.2)
-
Step 900
900
#3A3A6E
oklch(37.6% 0.087 281.3)
-
Step 950
950
#222341
oklch(27.1% 0.055 280.6)
#5553AA 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) | #2961AD | 0.057 |
| Deuteranopia (no green cones) | #225AA8 | 0.058 |
| Tritanopia (no blue cones) | #356676 | 0.118 |
| Achromatopsia (no color) | #5D5D5D | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5553AA
#5553AA
oklch(48.9% 0.135 281.2)
- #6D6100
#6D6100
oklch(48.9% 0.102 100.9)
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 #5553AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.047
- Twilight #4E518B ΔE 0.051
- Dusky Blue #475F94 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.058
- Blueberry #464196 ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.064
- French Blue #436BAD ΔE 0.065
- Slate Blue #6A5ACD ΔE 0.066
Use #5553AA 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.