#613F4F
Closest named color: Purple Brown (#673A3F). oklch(41.2% 0.053 349.9), rgb(97, 63, 79).
Aa
White text reads best on this color (9.00:1).
About this color
#613F4F is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.053 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.027 away. White text reads best on it, at 9.00:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #613F4F |
| RGB | rgb(97, 63, 79) |
| HSL | hsl(332, 21%, 31%) |
| OKLCH | oklch(41.2% 0.053 349.9) |
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 #613F4F | 9.00:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #613F4F | 2.33:1 | Fails | Lc 13.4 | Not readable |
| #613F4F text on white | 9.00:1 | AAA | Lc 90.6 | Preferred for body text |
| #613F4F text on black | 2.33:1 | Fails | Lc -11.7 | 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
#E3D5DB
oklch(88.6% 0.017 349.5)
-
Step 300
300
#D1B9C3
oklch(80.9% 0.03 350.7)
-
Step 400
400
#B994A5
oklch(70.6% 0.05 349.1)
-
Step 500
500
#A77A8F
oklch(63.1% 0.063 349.4)
-
Step 600
600
#926379
oklch(55.6% 0.068 349.9)
-
Step 700
700
#7C5266
oklch(49.1% 0.063 349.6)
-
Step 800
800 (this color)
#613F4F
oklch(41.2% 0.053 349.9)
-
Step 900
900
#533945
oklch(37.8% 0.041 349.9)
-
Step 950
950
#302128
oklch(26.9% 0.026 349.4)
#613F4F 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) | #424650 | 0.056 |
| Deuteranopia (no green cones) | #4A4B4E | 0.052 |
| Tritanopia (no blue cones) | #663E45 | 0.018 |
| Achromatopsia (no color) | #494949 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613F4F
#613F4F
oklch(41.2% 0.053 349.9)
- #2B5446
#2B5446
oklch(41.1% 0.052 169.5)
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 #613F4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.027
- Brownish Purple #76424E ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.071
- Dusty Grape #545775 ΔE 0.080
- Dark Mauve #874C62 ΔE 0.087
- Onyx #343A40 ΔE 0.088
- Dark Slate Gray #2F4F4F ΔE 0.089
- Dark Grey Blue #29465B ΔE 0.089
Use #613F4F 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.