#554E78
Closest named color: Dusk (#4E5481). oklch(44.9% 0.068 291), rgb(85, 78, 120).
Aa
White text reads best on this color (7.64:1).
About this color
#554E78 is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.068 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.021 away. White text reads best on it, at 7.64:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #554E78 |
| RGB | rgb(85, 78, 120) |
| HSL | hsl(250, 21%, 39%) |
| OKLCH | oklch(44.9% 0.068 291) |
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 #554E78 | 7.64:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #554E78 | 2.74:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #554E78 text on white | 7.64:1 | AAA | Lc 86.5 | Fine for body text |
| #554E78 text on black | 2.74:1 | Fails | Lc -15.6 | 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 800.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#EAE9F1
oklch(93.7% 0.011 291.9)
-
Step 200
200
#D9D7E7
oklch(88.6% 0.022 291.7)
-
Step 300
300
#C0BDD9
oklch(81% 0.039 290.4)
-
Step 400
400
#A09AC6
oklch(70.7% 0.064 290.9)
-
Step 500
500
#8981B7
oklch(63.1% 0.081 290.7)
-
Step 600
600
#736AA3
oklch(55.6% 0.088 290.5)
-
Step 700
700
#61588C
oklch(49.1% 0.082 291)
-
Step 800
800 (this color)
#554E78
oklch(44.9% 0.068 291)
-
Step 900
900
#423C5C
oklch(37.6% 0.054 292.2)
-
Step 950
950
#262436
oklch(27.1% 0.033 289.1)
#554E78 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) | #43547A | 0.030 |
| Deuteranopia (no green cones) | #435377 | 0.030 |
| Tritanopia (no blue cones) | #4D555D | 0.057 |
| Achromatopsia (no color) | #535353 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554E78
#554E78
oklch(44.9% 0.068 291)
- #565829
#565829
oklch(44.7% 0.068 111)
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 #554E78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.021
- Dusty Grape #545775 ΔE 0.028
- Twilight #4E518B ΔE 0.032
- YInMn Blue #415A77 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.058
- Dusky Blue #475F94 ΔE 0.059
- Dusk Blue #26538D ΔE 0.066
Use #554E78 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.