#554B77
Closest named color: Dusk (#4E5481). oklch(44.2% 0.072 293.7), rgb(85, 75, 119).
Aa
White text reads best on this color (7.89:1).
About this color
#554B77 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.072 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.028 away. White text reads best on it, at 7.89:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.65:1 |
| White text | 7.89:1 |
Values
| HEX | #554B77 |
| RGB | rgb(85, 75, 119) |
| HSL | hsl(254, 23%, 38%) |
| OKLCH | oklch(44.2% 0.072 293.7) |
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 #554B77 | 7.89:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #554B77 | 2.65:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #554B77 text on white | 7.89:1 | AAA | Lc 87.4 | Fine for body text |
| #554B77 text on black | 2.65:1 | Fails | Lc -14.8 | 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
#D9D7E8
oklch(88.6% 0.023 291.3)
-
Step 300
300
#C1BCDA
oklch(80.9% 0.042 293.1)
-
Step 400
400
#A299C7
oklch(70.7% 0.067 293.6)
-
Step 500
500
#8C7FB9
oklch(63% 0.087 294.1)
-
Step 600
600
#7668A5
oklch(55.6% 0.094 293.7)
-
Step 700
700
#63578D
oklch(49.2% 0.086 293.2)
-
Step 800
800 (this color)
#554B77
oklch(44.2% 0.072 293.7)
-
Step 900
900
#433C5D
oklch(37.8% 0.056 293.3)
-
Step 950
950
#272336
oklch(27% 0.035 293.6)
#554B77 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) | #3F5279 | 0.036 |
| Deuteranopia (no green cones) | #405176 | 0.035 |
| Tritanopia (no blue cones) | #4E535B | 0.060 |
| Achromatopsia (no color) | #515151 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554B77
#554B77
oklch(44.2% 0.072 293.7)
- #535725
#535725
oklch(44.1% 0.072 113.1)
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 #554B77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.028
- Twilight #4E518B ΔE 0.034
- Dusty Grape #545775 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.062
- Light Navy Blue #2E5A88 ΔE 0.063
- Dusky Blue #475F94 ΔE 0.066
Use #554B77 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.