#573B5A
Closest named color: Purple Brown (#673A3F). oklch(39.6% 0.062 323.3), rgb(87, 59, 90).
Aa
White text reads best on this color (9.63:1).
About this color
#573B5A is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.062 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.054 away. White text reads best on it, at 9.63:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #573B5A |
| RGB | rgb(87, 59, 90) |
| HSL | hsl(294, 21%, 29%) |
| OKLCH | oklch(39.6% 0.062 323.3) |
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 #573B5A | 9.63:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #573B5A | 2.17:1 | Fails | Lc 11.7 | Not readable |
| #573B5A text on white | 9.63:1 | AAA | Lc 92.2 | Preferred for body text |
| #573B5A text on black | 2.17:1 | Fails | Lc -10.2 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EEE7EF
oklch(93.6% 0.013 321.9)
-
Step 200
200
#E2D4E3
oklch(88.6% 0.025 323.8)
-
Step 300
300
#D0B7D2
oklch(80.9% 0.046 323.7)
-
Step 400
400
#B891BC
oklch(70.7% 0.075 323.3)
-
Step 500
500
#A675AB
oklch(63.1% 0.097 323.5)
-
Step 600
600
#905D96
oklch(55.5% 0.104 323.1)
-
Step 700
700
#7B4D80
oklch(49.2% 0.096 323.4)
-
Step 800
800
#643F68
oklch(42.7% 0.08 323.4)
-
Step 900
900 (this color)
#573B5A
oklch(39.6% 0.062 323.3)
-
Step 950
950
#302032
oklch(27.1% 0.04 322.8)
#573B5A 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) | #38435B | 0.055 |
| Deuteranopia (no green cones) | #3F4659 | 0.051 |
| Tritanopia (no blue cones) | #583E46 | 0.038 |
| Achromatopsia (no color) | #454545 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B5A
#573B5A
oklch(39.6% 0.062 323.3)
- #324F30
#324F30
oklch(39.5% 0.062 142.8)
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 #573B5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.070
- Brownish Purple #76424E ΔE 0.070
- Dark Grey Blue #29465B ΔE 0.076
- Onyx #343A40 ΔE 0.079
- Dusty Grape #545775 ΔE 0.082
- Charcoal #264653 ΔE 0.083
- Dusk #4E5481 ΔE 0.084
Use #573B5A 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.