#683E40
Closest named color: Purple Brown (#673A3F). oklch(41.4% 0.059 16.9), rgb(104, 62, 64).
Aa
White text reads best on this color (8.92:1).
About this color
#683E40 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.059 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.011 away. White text reads best on it, at 8.92:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #683E40 |
| RGB | rgb(104, 62, 64) |
| HSL | hsl(357, 25%, 33%) |
| OKLCH | oklch(41.4% 0.059 16.9) |
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 #683E40 | 8.92:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #683E40 | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #683E40 text on white | 8.92:1 | AAA | Lc 90.3 | Preferred for body text |
| #683E40 text on black | 2.35:1 | Fails | Lc -12.0 | 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
#F0E7E7
oklch(93.5% 0.01 17.3)
-
Step 200
200
#E6D4D4
oklch(88.5% 0.02 17.5)
-
Step 300
300
#D6B8B9
oklch(80.9% 0.035 15.6)
-
Step 400
400
#C19394
oklch(70.7% 0.056 17.1)
-
Step 500
500
#B0787A
oklch(63.1% 0.071 16.9)
-
Step 600
600
#9B6063
oklch(55.5% 0.077 16.6)
-
Step 700
700
#845052
oklch(49.1% 0.07 17.4)
-
Step 800
800 (this color)
#683E40
oklch(41.4% 0.059 16.9)
-
Step 900
900
#583739
oklch(37.7% 0.047 15.6)
-
Step 950
950
#332121
oklch(27% 0.028 19.1)
#683E40 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) | #464540 | 0.063 |
| Deuteranopia (no green cones) | #504D3F | 0.060 |
| Tritanopia (no blue cones) | #70393F | 0.019 |
| Achromatopsia (no color) | #4A4A4A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683E40
#683E40
oklch(41.4% 0.059 16.9)
- #1B5557
#1B5557
oklch(41.4% 0.059 198.4)
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 #683E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.011
- Brownish Purple #76424E ΔE 0.036
- Chestnut #742802 ΔE 0.072
- Mud Brown #60460F ΔE 0.074
- Charcoal Grey #3C4142 ΔE 0.079
- Red Brown #8B2E16 ΔE 0.081
- Milk Chocolate #7F4E1E ΔE 0.085
- Rust Brown #8B3103 ΔE 0.086
Use #683E40 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.