#554D7F
Closest named color: Dusk (#4E5481). oklch(45% 0.081 290.1), rgb(85, 77, 127).
Aa
White text reads best on this color (7.62:1).
About this color
#554D7F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.081 and its hue 290°. 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 7.62:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #554D7F |
| RGB | rgb(85, 77, 127) |
| HSL | hsl(250, 25%, 40%) |
| OKLCH | oklch(45% 0.081 290.1) |
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 #554D7F | 7.62:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #554D7F | 2.75:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #554D7F text on white | 7.62:1 | AAA | Lc 86.4 | Fine for body text |
| #554D7F text on black | 2.75:1 | 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
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D7EA
oklch(88.6% 0.026 288.3)
-
Step 300
300
#C0BCDE
oklch(80.9% 0.048 290.7)
-
Step 400
400
#9F99CD
oklch(70.7% 0.075 289.6)
-
Step 500
500
#897FC0
oklch(63.1% 0.097 290.4)
-
Step 600
600
#7368AC
oklch(55.7% 0.104 290)
-
Step 700
700
#605694
oklch(49.1% 0.098 289.7)
-
Step 800
800 (this color)
#554D7F
oklch(45% 0.081 290.1)
-
Step 900
900
#413B61
oklch(37.6% 0.064 290.2)
-
Step 950
950
#262339
oklch(27% 0.04 289.7)
#554D7F 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) | #3E5581 | 0.038 |
| Deuteranopia (no green cones) | #3E527E | 0.036 |
| Tritanopia (no blue cones) | #4B5660 | 0.067 |
| Achromatopsia (no color) | #545454 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554D7F
#554D7F
oklch(45% 0.081 290.1)
- #58591D
#58591D
oklch(45% 0.081 110.2)
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 #554D7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.021
- Twilight #4E518B ΔE 0.022
- Dusty Grape #545775 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.053
- Dusky Blue #475F94 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.058
Use #554D7F 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.