#55447B
Closest named color: Twilight (#4E518B). oklch(43% 0.09 296.7), rgb(85, 68, 123).
Aa
White text reads best on this color (8.40:1).
About this color
#55447B is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.090 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.040 away. White text reads best on it, at 8.40:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.49:1 |
| White text | 8.40:1 |
Values
| HEX | #55447B |
| RGB | rgb(85, 68, 123) |
| HSL | hsl(259, 29%, 37%) |
| OKLCH | oklch(43% 0.09 296.7) |
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 #55447B | 8.40:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #55447B | 2.49:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #55447B text on white | 8.40:1 | AAA | Lc 88.9 | Fine for body text |
| #55447B text on black | 2.49:1 | Fails | Lc -13.3 | Not readable |
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 800.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DBD6EB
oklch(88.6% 0.029 296.7)
-
Step 300
300
#C3BADF
oklch(80.8% 0.052 296.4)
-
Step 400
400
#A596CF
oklch(70.7% 0.083 296.3)
-
Step 500
500
#907BC3
oklch(63.1% 0.108 296.6)
-
Step 600
600
#7B63AF
oklch(55.6% 0.117 297)
-
Step 700
700
#675297
oklch(49.1% 0.109 296.2)
-
Step 800
800 (this color)
#55447B
oklch(43% 0.09 296.7)
-
Step 900
900
#453962
oklch(37.6% 0.07 296.4)
-
Step 950
950
#29223A
oklch(27.2% 0.044 296.7)
#55447B 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) | #344E7D | 0.053 |
| Deuteranopia (no green cones) | #374D7A | 0.050 |
| Tritanopia (no blue cones) | #4D4E59 | 0.073 |
| Achromatopsia (no color) | #4D4D4D | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55447B
#55447B
oklch(43% 0.09 296.7)
- #4D5610
#4D5610
oklch(43.1% 0.091 116.9)
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 #55447B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.043
- Dusk #4E5481 ΔE 0.044
- Blueberry #464196 ΔE 0.053
- Dusty Grape #545775 ΔE 0.058
- YInMn Blue #415A77 ΔE 0.070
- Dusk Blue #26538D ΔE 0.072
- Rebecca Purple #663399 ΔE 0.072
Use #55447B 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.