#554D75
Closest named color: Dusk (#4E5481). oklch(44.5% 0.065 292.7), rgb(85, 77, 117).
Aa
White text reads best on this color (7.76:1).
About this color
#554D75 is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.065 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.026 away. White text reads best on it, at 7.76:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.065) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.70:1 |
| White text | 7.76:1 |
Values
| HEX | #554D75 |
| RGB | rgb(85, 77, 117) |
| HSL | hsl(252, 21%, 38%) |
| OKLCH | oklch(44.5% 0.065 292.7) |
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 #554D75 | 7.76:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #554D75 | 2.70:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #554D75 text on white | 7.76:1 | AAA | Lc 86.9 | Fine for body text |
| #554D75 text on black | 2.70:1 | Fails | Lc -15.2 | 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
#D9D7E6
oklch(88.5% 0.021 292.1)
-
Step 300
300
#C1BDD8
oklch(81% 0.038 292.3)
-
Step 400
400
#A19AC4
oklch(70.7% 0.061 292.4)
-
Step 500
500
#8B81B5
oklch(63.2% 0.078 292.9)
-
Step 600
600
#756AA1
oklch(55.7% 0.085 292.6)
-
Step 700
700
#62588A
oklch(49.1% 0.079 292.4)
-
Step 800
800 (this color)
#554D75
oklch(44.5% 0.065 292.7)
-
Step 900
900
#423C5A
oklch(37.5% 0.051 292.9)
-
Step 950
950
#272435
oklch(27.1% 0.031 292.3)
#554D75 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) | #435377 | 0.030 |
| Deuteranopia (no green cones) | #435274 | 0.030 |
| Tritanopia (no blue cones) | #4E545B | 0.055 |
| Achromatopsia (no color) | #525252 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554D75
#554D75
oklch(44.5% 0.065 292.7)
- #54582B
#54582B
oklch(44.6% 0.066 113.2)
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 #554D75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.026
- Dusty Grape #545775 ΔE 0.030
- Twilight #4E518B ΔE 0.037
- YInMn Blue #415A77 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.061
- Dusky Blue #475F94 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.068
Use #554D75 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.