#613C4B
Closest named color: Purple Brown (#673A3F). oklch(40.5% 0.056 354), rgb(97, 60, 75).
Aa
White text reads best on this color (9.30:1).
About this color
#613C4B is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.056 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.021 away. White text reads best on it, at 9.30:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #613C4B |
| RGB | rgb(97, 60, 75) |
| HSL | hsl(336, 24%, 31%) |
| OKLCH | oklch(40.5% 0.056 354) |
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 #613C4B | 9.30:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #613C4B | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #613C4B text on white | 9.30:1 | AAA | Lc 91.4 | Preferred for body text |
| #613C4B text on black | 2.25:1 | Fails | Lc -11.0 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE7EA
oklch(93.5% 0.01 352.4)
-
Step 200
200
#E4D4DA
oklch(88.5% 0.019 352.7)
-
Step 300
300
#D3B8C2
oklch(80.9% 0.034 353.5)
-
Step 400
400
#BC93A3
oklch(70.6% 0.054 353.2)
-
Step 500
500
#AA798C
oklch(63.1% 0.066 354.1)
-
Step 600
600
#956176
oklch(55.5% 0.073 353.9)
-
Step 700
700
#7F5063
oklch(49% 0.068 354.1)
-
Step 800
800 (this color)
#613C4B
oklch(40.5% 0.056 354)
-
Step 900
900
#543843
oklch(37.7% 0.043 354.1)
-
Step 950
950
#312127
oklch(27% 0.027 354.7)
#613C4B 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) | #40434C | 0.060 |
| Deuteranopia (no green cones) | #49494A | 0.056 |
| Tritanopia (no blue cones) | #663B41 | 0.018 |
| Achromatopsia (no color) | #474747 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C4B
#613C4B
oklch(40.5% 0.056 354)
- #235347
#235347
oklch(40.5% 0.056 174.6)
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 #613C4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.021
- Brownish Purple #76424E ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.071
- Onyx #343A40 ΔE 0.085
- Dusty Grape #545775 ΔE 0.088
- Chestnut #742802 ΔE 0.090
- Dark Grey Blue #29465B ΔE 0.092
- Dark Slate Gray #2F4F4F ΔE 0.092
Use #613C4B 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.