#555186
Closest named color: Twilight (#4E518B). oklch(46.3% 0.085 286), rgb(85, 81, 134).
Aa
White text reads best on this color (7.22:1).
About this color
#555186 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.085 and its hue 286°. 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 7.22:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #555186 |
| RGB | rgb(85, 81, 134) |
| HSL | hsl(245, 25%, 42%) |
| OKLCH | oklch(46.3% 0.085 286) |
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 #555186 | 7.22:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #555186 | 2.90:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #555186 text on white | 7.22:1 | AAA | Lc 85.0 | Fine for body text |
| #555186 text on black | 2.90:1 | Fails | Lc -17.0 | 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
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D7D7E8
oklch(88.4% 0.023 285.9)
-
Step 300
300
#BEBDDB
oklch(80.9% 0.042 286.9)
-
Step 400
400
#9C9BC8
oklch(70.6% 0.065 285.6)
-
Step 500
500
#8582BA
oklch(63.1% 0.084 286.2)
-
Step 600
600
#6F6BA6
oklch(55.6% 0.091 286.2)
-
Step 700
700 (this color)
#555186
oklch(46.3% 0.085 286)
-
Step 800
800
#4C4974
oklch(42.8% 0.07 286.2)
-
Step 900
900
#3F3D5D
oklch(37.6% 0.054 286.3)
-
Step 950
950
#252437
oklch(27% 0.035 286.2)
#555186 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) | #405988 | 0.035 |
| Deuteranopia (no green cones) | #3F5685 | 0.033 |
| Tritanopia (no blue cones) | #485B65 | 0.073 |
| Achromatopsia (no color) | #575757 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555186
#555186
oklch(46.3% 0.085 286)
- #5F5B1A
#5F5B1A
oklch(46.2% 0.085 105.8)
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 #555186, 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 0.017
- Dusty Grape #545775 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.043
- Dusky Blue #475F94 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.053
- Denim #3B638C ΔE 0.057
Use #555186 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.