#613D4B
Closest named color: Purple Brown (#673A3F). oklch(40.7% 0.054 354.8), rgb(97, 61, 75).
Aa
White text reads best on this color (9.22:1).
About this color
#613D4B is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.054 and its hue 355°. 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 9.22:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #613D4B |
| RGB | rgb(97, 61, 75) |
| HSL | hsl(337, 23%, 31%) |
| OKLCH | oklch(40.7% 0.054 354.8) |
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 #613D4B | 9.22:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #613D4B | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #613D4B text on white | 9.22:1 | AAA | Lc 91.1 | Preferred for body text |
| #613D4B text on black | 2.27:1 | Fails | Lc -11.2 | 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 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
#E3D5DA
oklch(88.6% 0.017 353.7)
-
Step 300
300
#D2B9C2
oklch(81% 0.031 354)
-
Step 400
400
#BB94A2
oklch(70.7% 0.05 355)
-
Step 500
500
#AA798B
oklch(63.1% 0.066 355.4)
-
Step 600
600
#956275
oklch(55.7% 0.071 355.7)
-
Step 700
700
#7E5163
oklch(49.1% 0.065 354.1)
-
Step 800
800 (this color)
#613D4B
oklch(40.7% 0.054 354.8)
-
Step 900
900
#543843
oklch(37.7% 0.043 354.1)
-
Step 950
950
#312127
oklch(27% 0.027 354.7)
#613D4B 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) | #41444B | 0.059 |
| Deuteranopia (no green cones) | #4A4A4A | 0.054 |
| Tritanopia (no blue cones) | #663B42 | 0.016 |
| Achromatopsia (no color) | #474747 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613D4B
#613D4B
oklch(40.7% 0.054 354.8)
- #265348
#265348
oklch(40.7% 0.053 175.5)
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 #613D4B, 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 0.045
- Charcoal Grey #3C4142 ΔE 0.070
- Onyx #343A40 ΔE 0.086
- Dusty Grape #545775 ΔE 0.087
- Chestnut #742802 ΔE 0.090
- Dark Slate Gray #2F4F4F ΔE 0.091
- Dark Grey Blue #29465B ΔE 0.091
Use #613D4B 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.