#613C43
Closest named color: Purple Brown (#673A3F). oklch(40.2% 0.053 7.4), rgb(97, 60, 67).
Aa
White text reads best on this color (9.39:1).
About this color
#613C43 is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.053 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.013 away. White text reads best on it, at 9.39:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #613C43 |
| RGB | rgb(97, 60, 67) |
| HSL | hsl(349, 24%, 31%) |
| OKLCH | oklch(40.2% 0.053 7.4) |
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 #613C43 | 9.39:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #613C43 | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #613C43 text on white | 9.39:1 | AAA | Lc 91.6 | Preferred for body text |
| #613C43 text on black | 2.23:1 | Fails | Lc -10.8 | 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
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E4D5D7
oklch(88.6% 0.017 8.2)
-
Step 300
300
#D3B9BD
oklch(80.9% 0.03 7.3)
-
Step 400
400
#BD949B
oklch(70.7% 0.05 7)
-
Step 500
500
#AC7A82
oklch(63.2% 0.063 8.4)
-
Step 600
600
#96626C
oklch(55.5% 0.069 7)
-
Step 700
700
#80515A
oklch(49% 0.064 7.2)
-
Step 800
800 (this color)
#613C43
oklch(40.2% 0.053 7.4)
-
Step 900
900
#55383E
oklch(37.6% 0.042 5.7)
-
Step 950
950
#322124
oklch(27% 0.027 7.3)
#613C43 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) | #424243 | 0.057 |
| Deuteranopia (no green cones) | #4B4942 | 0.054 |
| Tritanopia (no blue cones) | #67393E | 0.014 |
| Achromatopsia (no color) | #464646 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C43
#613C43
oklch(40.2% 0.053 7.4)
- #21514D
#21514D
oklch(40.1% 0.052 187.9)
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 #613C43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.013
- Brownish Purple #76424E ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.067
- Chestnut #742802 ΔE 0.079
- Mud Brown #60460F ΔE 0.081
- Onyx #343A40 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.090
- Dark Grey Blue #29465B ΔE 0.094
Use #613C43 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.