#554B73
Closest named color: Dusk (#4E5481). oklch(44% 0.066 295), rgb(85, 75, 115).
Aa
White text reads best on this color (7.95:1).
About this color
#554B73 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.066 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.031 away. White text reads best on it, at 7.95:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.64:1 |
| White text | 7.95:1 |
Values
| HEX | #554B73 |
| RGB | rgb(85, 75, 115) |
| HSL | hsl(255, 21%, 37%) |
| OKLCH | oklch(44% 0.066 295) |
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 #554B73 | 7.95:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #554B73 | 2.64:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #554B73 text on white | 7.95:1 | AAA | Lc 87.5 | Fine for body text |
| #554B73 text on black | 2.64:1 | Fails | Lc -14.6 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#EAE8F1
oklch(93.5% 0.012 296.3)
-
Step 200
200
#DAD7E6
oklch(88.6% 0.021 295.1)
-
Step 300
300
#C2BCD7
oklch(80.9% 0.038 295.7)
-
Step 400
400
#A399C3
oklch(70.6% 0.061 295.7)
-
Step 500
500
#8D80B4
oklch(63.1% 0.078 295.5)
-
Step 600
600
#7769A0
oklch(55.6% 0.085 295.2)
-
Step 700
700
#645789
oklch(49.1% 0.08 295.3)
-
Step 800
800 (this color)
#554B73
oklch(44% 0.066 295)
-
Step 900
900
#433C5A
oklch(37.6% 0.051 294.5)
-
Step 950
950
#272335
oklch(26.9% 0.033 294.2)
#554B73 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) | #415175 | 0.033 |
| Deuteranopia (no green cones) | #425072 | 0.032 |
| Tritanopia (no blue cones) | #4F525A | 0.054 |
| Achromatopsia (no color) | #515151 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554B73
#554B73
oklch(44% 0.066 295)
- #51572A
#51572A
oklch(44% 0.066 115.4)
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 #554B73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.031
- Dusty Grape #545775 ΔE 0.035
- Twilight #4E518B ΔE 0.040
- YInMn Blue #415A77 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.066
- Dusky Blue #475F94 ΔE 0.069
Use #554B73 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.