#683B51
Closest named color: Purple Brown (#673A3F). oklch(41.5% 0.07 349.9), rgb(104, 59, 81).
Aa
White text reads best on this color (9.00:1).
About this color
#683B51 is a dark, moderately saturated red. In OKLCH its lightness is 41%, its chroma 0.070 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.029 away. White text reads best on it, at 9.00:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.070) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #683B51 |
| RGB | rgb(104, 59, 81) |
| HSL | hsl(331, 28%, 32%) |
| OKLCH | oklch(41.5% 0.07 349.9) |
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 #683B51 | 9.00:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #683B51 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #683B51 text on white | 9.00:1 | AAA | Lc 90.5 | Preferred for body text |
| #683B51 text on black | 2.33:1 | Fails | Lc -11.8 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EB
oklch(93.6% 0.011 348.4)
-
Step 200
200
#E6D3DB
oklch(88.5% 0.024 350.2)
-
Step 300
300
#D6B6C4
oklch(80.8% 0.041 349.9)
-
Step 400
400
#C190A6
oklch(70.7% 0.066 350.3)
-
Step 500
500
#B07491
oklch(63% 0.084 349.3)
-
Step 600
600
#9B5C7B
oklch(55.5% 0.091 349.6)
-
Step 700
700
#844C68
oklch(49.1% 0.084 349.3)
-
Step 800
800 (this color)
#683B51
oklch(41.5% 0.07 349.9)
-
Step 900
900
#583546
oklch(37.7% 0.056 349.5)
-
Step 950
950
#331F29
oklch(26.9% 0.035 348.3)
#683B51 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) | #3F4452 | 0.075 |
| Deuteranopia (no green cones) | #4B4C50 | 0.069 |
| Tritanopia (no blue cones) | #6E3A43 | 0.025 |
| Achromatopsia (no color) | #494949 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683B51
#683B51
oklch(41.5% 0.07 349.9)
- #195846
#195846
oklch(41.5% 0.07 170.2)
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 #683B51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.029
- Brownish Purple #76424E ΔE 0.037
- Dark Mauve #874C62 ΔE 0.080
- Charcoal Grey #3C4142 ΔE 0.087
- Dusty Grape #545775 ΔE 0.087
- Red Purple #820747 ΔE 0.090
- Velvet #750851 ΔE 0.091
- Wine #80013F ΔE 0.092
Use #683B51 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.