#573B53
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.054 331.6), rgb(87, 59, 83).
Aa
White text reads best on this color (9.74:1).
About this color
#573B53 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.054 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.044 away. White text reads best on it, at 9.74:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.15:1 |
| White text | 9.74:1 |
Values
| HEX | #573B53 |
| RGB | rgb(87, 59, 83) |
| HSL | hsl(309, 19%, 29%) |
| OKLCH | oklch(39.3% 0.054 331.6) |
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 #573B53 | 9.74:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #573B53 | 2.15:1 | Fails | Lc 11.4 | Not readable |
| #573B53 text on white | 9.74:1 | AAA | Lc 92.5 | Preferred for body text |
| #573B53 text on black | 2.15:1 | Fails | Lc -9.9 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7ED
oklch(93.6% 0.012 334.1)
-
Step 200
200
#E2D4E0
oklch(88.5% 0.022 330.3)
-
Step 300
300
#D1B8CD
oklch(81% 0.04 331.2)
-
Step 400
400
#B992B3
oklch(70.7% 0.065 331.5)
-
Step 500
500
#A777A0
oklch(63.1% 0.082 331.7)
-
Step 600
600
#925F8B
oklch(55.6% 0.09 331.7)
-
Step 700
700
#7C4E76
oklch(49% 0.084 331.5)
-
Step 800
800
#654060
oklch(42.6% 0.07 331.6)
-
Step 900
900 (this color)
#573B53
oklch(39.3% 0.054 331.6)
-
Step 950
950
#30202E
oklch(26.9% 0.034 330.8)
#573B53 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) | #3A4254 | 0.052 |
| Deuteranopia (no green cones) | #414552 | 0.047 |
| Tritanopia (no blue cones) | #593D44 | 0.028 |
| Achromatopsia (no color) | #444444 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B53
#573B53
oklch(39.3% 0.054 331.6)
- #2F4E37
#2F4E37
oklch(39.2% 0.054 151.5)
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 #573B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.062
- Brownish Purple #76424E ΔE 0.067
- Onyx #343A40 ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.075
- Charcoal #264653 ΔE 0.080
- Dusty Grape #545775 ΔE 0.086
- Dark Slate Gray #2F4F4F ΔE 0.086
Use #573B53 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.