#613C50
Closest named color: Purple Brown (#673A3F). oklch(40.7% 0.06 346.5), rgb(97, 60, 80).
Aa
White text reads best on this color (9.24:1).
About this color
#613C50 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.060 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.029 away. White text reads best on it, at 9.24:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.060) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #613C50 |
| RGB | rgb(97, 60, 80) |
| HSL | hsl(328, 24%, 31%) |
| OKLCH | oklch(40.7% 0.06 346.5) |
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 #613C50 | 9.24:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #613C50 | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #613C50 text on white | 9.24:1 | AAA | Lc 91.2 | Preferred for body text |
| #613C50 text on black | 2.27:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E3D4DC
oklch(88.4% 0.02 344)
-
Step 300
300
#D2B8C5
oklch(80.9% 0.034 346.2)
-
Step 400
400
#BB93A8
oklch(70.7% 0.056 345.8)
-
Step 500
500
#AA7892
oklch(63.1% 0.071 346.8)
-
Step 600
600
#95617C
oklch(55.7% 0.077 347.4)
-
Step 700
700
#7E5069
oklch(49.1% 0.071 346.2)
-
Step 800
800 (this color)
#613C50
oklch(40.7% 0.06 346.5)
-
Step 900
900
#543747
oklch(37.6% 0.048 345.4)
-
Step 950
950
#312129
oklch(27% 0.028 347.7)
#613C50 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) | #3F4451 | 0.062 |
| Deuteranopia (no green cones) | #484A4F | 0.058 |
| Tritanopia (no blue cones) | #663C43 | 0.024 |
| Achromatopsia (no color) | #474747 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C50
#613C50
oklch(40.7% 0.06 346.5)
- #255442
#255442
oklch(40.7% 0.06 166)
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 #613C50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.029
- Brownish Purple #76424E ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.074
- Dusty Grape #545775 ΔE 0.085
- Onyx #343A40 ΔE 0.088
- Dark Mauve #874C62 ΔE 0.091
- Dark Grey Blue #29465B ΔE 0.091
- Dusk #4E5481 ΔE 0.094
Use #613C50 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.