#555290
Closest named color: Twilight (#4E518B). oklch(47.1% 0.099 284.1), rgb(85, 82, 144).
Aa
White text reads best on this color (7.00:1).
About this color
#555290 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.099 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.014 away. White text reads best on it, at 7.00:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #555290 |
| RGB | rgb(85, 82, 144) |
| HSL | hsl(243, 27%, 44%) |
| OKLCH | oklch(47.1% 0.099 284.1) |
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 #555290 | 7.00:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #555290 | 2.99:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #555290 text on white | 7.00:1 | AAA | Lc 84.2 | Fine for body text |
| #555290 text on black | 2.99:1 | Fails | Lc -17.8 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EB
oklch(88.4% 0.027 283.5)
-
Step 300
300
#BCBDDF
oklch(80.9% 0.048 283.9)
-
Step 400
400
#9A9BCF
oklch(70.8% 0.076 283.4)
-
Step 500
500
#8281C3
oklch(63.1% 0.098 283.9)
-
Step 600
600
#6C6AAF
oklch(55.6% 0.106 283.7)
-
Step 700
700 (this color)
#555290
oklch(47.1% 0.099 284.1)
-
Step 800
800
#4A487A
oklch(42.7% 0.082 284.2)
-
Step 900
900
#3E3D62
oklch(37.8% 0.063 284.2)
-
Step 950
950
#242439
oklch(27.1% 0.039 283.5)
#555290 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) | #3C5B92 | 0.039 |
| Deuteranopia (no green cones) | #3A578F | 0.038 |
| Tritanopia (no blue cones) | #445E6A | 0.084 |
| Achromatopsia (no color) | #595959 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555290
#555290
oklch(47.1% 0.099 284.1)
- #645D02
#645D02
oklch(47% 0.099 104.4)
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 #555290, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.014
- Dusk #4E5481 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.040
- Dusty Grape #545775 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.055
- Blueberry #464196 ΔE 0.056
- Denim #3B638C ΔE 0.058
Use #555290 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.