#55559E
Closest named color: Twilight (#4E518B). oklch(48.5% 0.115 281.2), rgb(85, 85, 158).
Aa
White text reads best on this color (6.60:1).
About this color
#55559E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.115 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.034 away. White text reads best on it, at 6.60:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.17:1 |
| White text | 6.60:1 |
Values
| HEX | #55559E |
| RGB | rgb(85, 85, 158) |
| HSL | hsl(240, 30%, 48%) |
| OKLCH | oklch(48.5% 0.115 281.2) |
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 #55559E | 6.60:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #55559E | 3.17:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #55559E text on white | 6.60:1 | AA | Lc 82.5 | Fine for body text |
| #55559E text on black | 3.17:1 | AA large text | Lc -19.4 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#BABDE5
oklch(80.9% 0.056 281.7)
-
Step 400
400
#979AD7
oklch(70.7% 0.089 281.7)
-
Step 500
500
#7E80CD
oklch(63.1% 0.115 281.4)
-
Step 600
600
#6868B9
oklch(55.5% 0.124 281.6)
-
Step 700
700 (this color)
#55559E
oklch(48.5% 0.115 281.2)
-
Step 800
800
#474781
oklch(42.7% 0.095 281.6)
-
Step 900
900
#3B3C68
oklch(37.7% 0.074 281.2)
-
Step 950
950
#22233D
oklch(26.9% 0.048 281)
#55559E 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) | #3860A1 | 0.043 |
| Deuteranopia (no green cones) | #335A9C | 0.044 |
| Tritanopia (no blue cones) | #3D6472 | 0.099 |
| Achromatopsia (no color) | #5D5D5D | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55559E
#55559E
oklch(48.5% 0.115 281.2)
- #6C6000
#6C6000
oklch(48.6% 0.101 100.9)
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 #55559E, closest first.
No curated palette has a color within ΔE 0.04 of #55559E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.034
- Dusky Blue #475F94 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.044
- Dusk #4E5481 ΔE 0.049
- Blueberry #464196 ΔE 0.060
- French Blue #436BAD ΔE 0.062
- Denim #3B638C ΔE 0.062
- Iris #6258C4 ΔE 0.064
Use #55559E 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.