#554F66
Closest named color: Dusty Grape (#545775). oklch(44.2% 0.038 296.8), rgb(85, 79, 102).
Aa
White text reads best on this color (7.78:1).
About this color
#554F66 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.038 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.029 away. White text reads best on it, at 7.78:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.69:1 |
| White text | 7.78:1 |
Values
| HEX | #554F66 |
| RGB | rgb(85, 79, 102) |
| HSL | hsl(256, 13%, 35%) |
| OKLCH | oklch(44.2% 0.038 296.8) |
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 #554F66 | 7.78:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #554F66 | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #554F66 text on white | 7.78:1 | AAA | Lc 87.0 | Fine for body text |
| #554F66 text on black | 2.69:1 | Fails | Lc -15.1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9EE
oklch(93.6% 0.007 295.4)
-
Step 200
200
#DAD8E0
oklch(88.6% 0.011 297.6)
-
Step 300
300
#C2BECE
oklch(81% 0.023 297.3)
-
Step 400
400
#A29CB5
oklch(70.6% 0.037 296.4)
-
Step 500
500
#8C84A2
oklch(63.1% 0.045 297.3)
-
Step 600
600
#766E8D
oklch(55.7% 0.048 296.6)
-
Step 700
700
#635C78
oklch(49.2% 0.045 296.2)
-
Step 800
800 (this color)
#554F66
oklch(44.2% 0.038 296.8)
-
Step 900
900
#433E50
oklch(37.6% 0.031 297.6)
-
Step 950
950
#27252F
oklch(27.1% 0.019 294.3)
#554F66 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) | #4A5267 | 0.018 |
| Deuteranopia (no green cones) | #4B5265 | 0.018 |
| Tritanopia (no blue cones) | #525257 | 0.030 |
| Achromatopsia (no color) | #525252 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554F66
#554F66
oklch(44.2% 0.038 296.8)
- #51563E
#51563E
oklch(44.2% 0.038 117.5)
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 #554F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.029
- YInMn Blue #415A77 ΔE 0.043
- Dusk #4E5481 ΔE 0.044
- Twilight #4E518B ΔE 0.061
- Slate #516572 ΔE 0.064
- Brownish Purple #76424E ΔE 0.069
- Dark Slate Gray #2F4F4F ΔE 0.070
- Light Navy Blue #2E5A88 ΔE 0.071
Use #554F66 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.