#613639
Closest named color: Purple Brown (#673A3F). oklch(38.7% 0.062 15.9), rgb(97, 54, 57).
Aa
White text reads best on this color (10.02:1).
About this color
#613639 is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.062 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.018 away. White text reads best on it, at 10.02:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.09:1 |
| White text | 10.02:1 |
Values
| HEX | #613639 |
| RGB | rgb(97, 54, 57) |
| HSL | hsl(356, 28%, 30%) |
| OKLCH | oklch(38.7% 0.062 15.9) |
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 #613639 | 10.02:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #613639 | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #613639 text on white | 10.02:1 | AAA | Lc 93.1 | Preferred for body text |
| #613639 text on black | 2.09:1 | Fails | Lc -9.4 | 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
#FAF4F4
oklch(97.2% 0.006 17.3)
-
Step 100
100
#F3E6E7
oklch(93.6% 0.014 12)
-
Step 200
200
#EAD3D3
oklch(88.6% 0.026 17.6)
-
Step 300
300
#DDB5B6
oklch(80.9% 0.046 16.5)
-
Step 400
400
#CB8E91
oklch(70.8% 0.075 15.9)
-
Step 500
500
#BC7176
oklch(63.1% 0.095 15.8)
-
Step 600
600
#A7585F
oklch(55.6% 0.104 15.4)
-
Step 700
700
#8F484E
oklch(49.1% 0.096 15.9)
-
Step 800
800
#743C40
oklch(42.8% 0.078 16.4)
-
Step 900
900 (this color)
#613639
oklch(38.7% 0.062 15.9)
-
Step 950
950
#371E20
oklch(26.9% 0.039 14.9)
#613639 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) | #3E3D39 | 0.067 |
| Deuteranopia (no green cones) | #494538 | 0.061 |
| Tritanopia (no blue cones) | #693137 | 0.019 |
| Achromatopsia (no color) | #424242 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613639
#613639
oklch(38.7% 0.062 15.9)
- #0C4E4F
#0C4E4F
oklch(38.6% 0.061 196.5)
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 #613639, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.018
- Brownish Purple #76424E ΔE 0.061
- Chestnut #742802 ΔE 0.066
- Charcoal Grey #3C4142 ΔE 0.070
- Mud Brown #60460F ΔE 0.080
- Reddy Brown #6E1005 ΔE 0.081
- Onyx #343A40 ΔE 0.082
- Wine Red #7B0323 ΔE 0.086
Use #613639 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.