#613636
Closest named color: Purple Brown (#673A3F). oklch(38.6% 0.062 20.3), rgb(97, 54, 54).
Aa
White text reads best on this color (10.05:1).
About this color
#613636 is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.062 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.020 away. White text reads best on it, at 10.05:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #613636 |
| RGB | rgb(97, 54, 54) |
| HSL | hsl(0, 28%, 30%) |
| OKLCH | oklch(38.6% 0.062 20.3) |
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 #613636 | 10.05:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #613636 | 2.08:1 | Fails | Lc 10.8 | Not readable |
| #613636 text on white | 10.05:1 | AAA | Lc 93.1 | Preferred for body text |
| #613636 text on black | 2.08:1 | 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
#F3E6E6
oklch(93.5% 0.014 17.4)
-
Step 200
200
#EAD3D2
oklch(88.5% 0.026 20.6)
-
Step 300
300
#DDB5B4
oklch(80.8% 0.046 19.8)
-
Step 400
400
#CB8E8D
oklch(70.7% 0.075 20.2)
-
Step 500
500
#BC7171
oklch(63% 0.095 20.1)
-
Step 600
600
#A7595A
oklch(55.6% 0.102 20.1)
-
Step 700
700
#8F4849
oklch(49% 0.096 20.3)
-
Step 800
800
#743C3C
oklch(42.7% 0.079 20.9)
-
Step 900
900 (this color)
#613636
oklch(38.6% 0.062 20.3)
-
Step 950
950
#371E1E
oklch(26.8% 0.039 20)
#613636 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) | #3F3D36 | 0.065 |
| Deuteranopia (no green cones) | #494535 | 0.061 |
| Tritanopia (no blue cones) | #693136 | 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°).
- #613636
#613636
oklch(38.6% 0.062 20.3)
- #0B4E51
#0B4E51
oklch(38.7% 0.062 199.6)
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 #613636, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.020
- Chestnut #742802 ΔE 0.062
- Brownish Purple #76424E ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.070
- Mud Brown #60460F ΔE 0.076
- Reddy Brown #6E1005 ΔE 0.079
- Onyx #343A40 ΔE 0.082
- Wine Red #7B0323 ΔE 0.086
Use #613636 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.