#553B4D
Closest named color: Purple Brown (#673A3F). oklch(38.8% 0.046 338.3), rgb(85, 59, 77).
Aa
White text reads best on this color (9.91:1).
About this color
#553B4D is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.046 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.041 away. White text reads best on it, at 9.91:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.11:1 |
| White text | 9.91:1 |
Values
| HEX | #553B4D |
| RGB | rgb(85, 59, 77) |
| HSL | hsl(318, 18%, 28%) |
| OKLCH | oklch(38.8% 0.046 338.3) |
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 #553B4D | 9.91:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #553B4D | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #553B4D text on white | 9.91:1 | AAA | Lc 92.9 | Preferred for body text |
| #553B4D text on black | 2.11:1 | Fails | Lc -9.5 | 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 900.
-
Step 50
50
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EC
oklch(93.6% 0.011 339.3)
-
Step 200
200
#E2D4DD
oklch(88.4% 0.02 338.8)
-
Step 300
300
#D0B8C8
oklch(80.8% 0.035 338.1)
-
Step 400
400
#B894AC
oklch(70.7% 0.054 338.7)
-
Step 500
500
#A67998
oklch(63.1% 0.07 338.3)
-
Step 600
600
#916283
oklch(55.7% 0.076 338.2)
-
Step 700
700
#7B516F
oklch(49.2% 0.071 337.7)
-
Step 800
800
#64425A
oklch(42.6% 0.059 338)
-
Step 900
900 (this color)
#553B4D
oklch(38.8% 0.046 338.3)
-
Step 950
950
#30212B
oklch(27% 0.029 339.3)
#553B4D 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) | #3C414E | 0.045 |
| Deuteranopia (no green cones) | #42444C | 0.042 |
| Tritanopia (no blue cones) | #583C41 | 0.022 |
| Achromatopsia (no color) | #434343 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553B4D
#553B4D
oklch(38.8% 0.046 338.3)
- #2F4C3B
#2F4C3B
oklch(38.8% 0.046 157.7)
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 #553B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.053
- Onyx #343A40 ΔE 0.064
- Brownish Purple #76424E ΔE 0.069
- Dark Grey Blue #29465B ΔE 0.072
- Charcoal #264653 ΔE 0.076
- Dark Slate Gray #2F4F4F ΔE 0.081
- Dark Blue Grey #1F3B4D ΔE 0.086
Use #553B4D 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.