#5553B7
Closest named color: Iris (#6258C4). oklch(49.8% 0.154 280.1), rgb(85, 83, 183).
Aa
White text reads best on this color (6.34:1).
About this color
#5553B7 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.154 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.031 away. White text reads best on it, at 6.34:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.30:1 |
| White text | 6.34:1 |
Values
| HEX | #5553B7 |
| RGB | rgb(85, 83, 183) |
| HSL | hsl(241, 41%, 52%) |
| OKLCH | oklch(49.8% 0.154 280.1) |
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 #5553B7 | 6.34:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #5553B7 | 3.30:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #5553B7 text on white | 6.34:1 | AA | Lc 81.3 | Fine for body text |
| #5553B7 text on black | 3.30:1 | AA large text | Lc -20.6 | 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
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B7BCF1
oklch(81% 0.075 280.4)
-
Step 400
400
#9298E9
oklch(70.7% 0.118 279.7)
-
Step 500
500
#797CE3
oklch(63.2% 0.152 279.8)
-
Step 600
600
#6462D0
oklch(55.5% 0.165 280.4)
-
Step 700
700 (this color)
#5553B7
oklch(49.8% 0.154 280.1)
-
Step 800
800
#444392
oklch(42.8% 0.127 280.2)
-
Step 900
900
#393974
oklch(37.7% 0.099 280.6)
-
Step 950
950
#212244
oklch(27% 0.062 280.1)
#5553B7 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) | #1663BA | 0.066 |
| Deuteranopia (no green cones) | #005CB5 | 0.070 |
| Tritanopia (no blue cones) | #2A6A7D | 0.133 |
| Achromatopsia (no color) | #5F5F5F | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5553B7
#5553B7
oklch(49.8% 0.154 280.1)
- #716300
#716300
oklch(49.8% 0.103 99.6)
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 #5553B7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.031
- Bluey Purple #6241C7 ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.051
- Light Indigo #6D5ACF ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.056
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Warm Blue #4B57DB ΔE 0.057
- Blurple #5539CC ΔE 0.065
Use #5553B7 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.