#5553B2
Closest named color: Iris (#6258C4). oklch(49.5% 0.147 280.5), rgb(85, 83, 178).
Aa
White text reads best on this color (6.42:1).
About this color
#5553B2 is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.147 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.037 away. White text reads best on it, at 6.42:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.26:1 |
| White text | 6.42:1 |
Values
| HEX | #5553B2 |
| RGB | rgb(85, 83, 178) |
| HSL | hsl(241, 38%, 51%) |
| OKLCH | oklch(49.5% 0.147 280.5) |
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 #5553B2 | 6.42:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #5553B2 | 3.26:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #5553B2 text on white | 6.42:1 | AA | Lc 81.7 | Fine for body text |
| #5553B2 text on black | 3.26:1 | AA large text | Lc -20.2 | 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
#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
#B7BCEE
oklch(80.8% 0.071 280.2)
-
Step 400
400
#9398E6
oklch(70.7% 0.114 280.3)
-
Step 500
500
#7B7CDF
oklch(63.1% 0.146 280.9)
-
Step 600
600
#6563CC
oklch(55.5% 0.158 280.8)
-
Step 700
700 (this color)
#5553B2
oklch(49.5% 0.147 280.5)
-
Step 800
800
#45448F
oklch(42.8% 0.121 280.6)
-
Step 900
900
#393A72
oklch(37.7% 0.094 280.1)
-
Step 950
950
#212243
oklch(26.9% 0.061 280.2)
#5553B2 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) | #1F62B5 | 0.062 |
| Deuteranopia (no green cones) | #135BB0 | 0.065 |
| Tritanopia (no blue cones) | #2E687A | 0.127 |
| Achromatopsia (no color) | #5F5F5F | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5553B2
#5553B2
oklch(49.5% 0.147 280.5)
- #6F6300
#6F6300
oklch(49.6% 0.103 101.1)
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 #5553B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.037
- Bluey Purple #6241C7 ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.056
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.062
- Twilight #4E518B ΔE 0.064
- Dusky Blue #475F94 ΔE 0.065
Use #5553B2 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.