#613D3E
Closest named color: Purple Brown (#673A3F). oklch(40.2% 0.051 17.7), rgb(97, 61, 62).
Aa
White text reads best on this color (9.35:1).
About this color
#613D3E is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.051 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.014 away. White text reads best on it, at 9.35:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.35:1 |
Values
| HEX | #613D3E |
| RGB | rgb(97, 61, 62) |
| HSL | hsl(358, 23%, 31%) |
| OKLCH | oklch(40.2% 0.051 17.7) |
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 #613D3E | 9.35:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #613D3E | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #613D3E text on white | 9.35:1 | AAA | Lc 91.5 | Preferred for body text |
| #613D3E text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E8E8
oklch(93.7% 0.009 17.3)
-
Step 200
200
#E4D5D5
oklch(88.5% 0.017 17.5)
-
Step 300
300
#D3B9B9
oklch(80.8% 0.03 17.8)
-
Step 400
400
#BD9595
oklch(70.7% 0.048 18.4)
-
Step 500
500
#AB7B7C
oklch(63.1% 0.06 17.5)
-
Step 600
600
#966365
oklch(55.5% 0.066 16.9)
-
Step 700
700
#805254
oklch(49% 0.062 16.7)
-
Step 800
800 (this color)
#613D3E
oklch(40.2% 0.051 17.7)
-
Step 900
900
#55393A
oklch(37.7% 0.04 16.8)
-
Step 950
950
#322222
oklch(27.2% 0.025 18.8)
#613D3E 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) | #44423E | 0.054 |
| Deuteranopia (no green cones) | #4C493D | 0.051 |
| Tritanopia (no blue cones) | #68393E | 0.017 |
| Achromatopsia (no color) | #474747 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613D3E
#613D3E
oklch(40.2% 0.051 17.7)
- #225152
#225152
oklch(40.3% 0.051 197.2)
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 #613D3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.014
- Brownish Purple #76424E ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.066
- Mud Brown #60460F ΔE 0.072
- Chestnut #742802 ΔE 0.074
- Onyx #343A40 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.089
- Red Brown #8B2E16 ΔE 0.091
Use #613D3E 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.