#613B41
Closest named color: Purple Brown (#673A3F). oklch(39.9% 0.054 9.5), rgb(97, 59, 65).
Aa
White text reads best on this color (9.50:1).
About this color
#613B41 is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.054 and its hue 10°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.012 away. White text reads best on it, at 9.50:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.21:1 |
| White text | 9.50:1 |
Values
| HEX | #613B41 |
| RGB | rgb(97, 59, 65) |
| HSL | hsl(351, 24%, 31%) |
| OKLCH | oklch(39.9% 0.054 9.5) |
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 #613B41 | 9.50:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #613B41 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #613B41 text on white | 9.50:1 | AAA | Lc 91.9 | Preferred for body text |
| #613B41 text on black | 2.21:1 | Fails | Lc -10.5 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E8
oklch(93.6% 0.011 10.3)
-
Step 200
200
#E8D3D6
oklch(88.5% 0.024 7.8)
-
Step 300
300
#D9B6BB
oklch(80.8% 0.041 8.3)
-
Step 400
400
#C59098
oklch(70.7% 0.065 8.8)
-
Step 500
500
#B5747E
oklch(63% 0.083 9.7)
-
Step 600
600
#A05C68
oklch(55.6% 0.09 9.1)
-
Step 700
700
#894B56
oklch(49% 0.085 9.3)
-
Step 800
800
#703E46
oklch(42.7% 0.07 10.2)
-
Step 900
900 (this color)
#613B41
oklch(39.9% 0.054 9.5)
-
Step 950
950
#351F23
oklch(26.9% 0.035 7.8)
#613B41 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) | #414141 | 0.059 |
| Deuteranopia (no green cones) | #4B4840 | 0.054 |
| Tritanopia (no blue cones) | #68383D | 0.015 |
| Achromatopsia (no color) | #464646 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613B41
#613B41
oklch(39.9% 0.054 9.5)
- #1E514E
#1E514E
oklch(40% 0.054 189.9)
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 #613B41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.012
- Brownish Purple #76424E ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.067
- Chestnut #742802 ΔE 0.076
- Mud Brown #60460F ΔE 0.080
- Onyx #343A40 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.092
- Red Brown #8B2E16 ΔE 0.093
Use #613B41 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.