#55538D
Closest named color: Twilight (#4E518B). oklch(47.1% 0.093 283.8), rgb(85, 83, 141).
Aa
White text reads best on this color (6.98:1).
About this color
#55538D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.093 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.013 away. White text reads best on it, at 6.98:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.00:1 |
| White text | 6.98:1 |
Values
| HEX | #55538D |
| RGB | rgb(85, 83, 141) |
| HSL | hsl(242, 26%, 44%) |
| OKLCH | oklch(47.1% 0.093 283.8) |
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 #55538D | 6.98:1 | AA | Lc -89.0 | Fine for body text |
| Black text on #55538D | 3.00:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #55538D text on white | 6.98:1 | AA | Lc 84.1 | Fine for body text |
| #55538D text on black | 3.00:1 | AA large text | Lc -17.9 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D6D7EA
oklch(88.4% 0.026 283.4)
-
Step 300
300
#BCBDDD
oklch(80.8% 0.045 283.9)
-
Step 400
400
#9A9BCC
oklch(70.6% 0.071 283.5)
-
Step 500
500
#8282BF
oklch(63.1% 0.091 283.5)
-
Step 600
600
#6C6BAB
oklch(55.6% 0.098 283.4)
-
Step 700
700 (this color)
#55538D
oklch(47.1% 0.093 283.8)
-
Step 800
800
#4A4977
oklch(42.8% 0.075 283.7)
-
Step 900
900
#3E3D60
oklch(37.7% 0.059 284.5)
-
Step 950
950
#242438
oklch(27% 0.037 283.7)
#55538D 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) | #3F5B8F | 0.035 |
| Deuteranopia (no green cones) | #3D578C | 0.034 |
| Tritanopia (no blue cones) | #455E69 | 0.079 |
| Achromatopsia (no color) | #595959 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55538D
#55538D
oklch(47.1% 0.093 283.8)
- #645D10
#645D10
oklch(47.1% 0.093 103.9)
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 #55538D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.013
- Dusk #4E5481 ΔE 0.024
- Dusky Blue #475F94 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Dusty Grape #545775 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.053
- YInMn Blue #415A77 ΔE 0.054
- Denim #3B638C ΔE 0.054
Use #55538D 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.