#683540
Closest named color: Purple Brown (#673A3F). oklch(39.8% 0.074 7.2), rgb(104, 53, 64).
Aa
White text reads best on this color (9.66:1).
About this color
#683540 is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.074 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.014 away. White text reads best on it, at 9.66:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.17:1 |
| White text | 9.66:1 |
Values
| HEX | #683540 |
| RGB | rgb(104, 53, 64) |
| HSL | hsl(347, 32%, 31%) |
| OKLCH | oklch(39.8% 0.074 7.2) |
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 #683540 | 9.66:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #683540 | 2.17:1 | Fails | Lc 11.8 | Not readable |
| #683540 text on white | 9.66:1 | AAA | Lc 92.1 | Preferred for body text |
| #683540 text on black | 2.17:1 | Fails | Lc -10.3 | 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
#FAF3F4
oklch(97% 0.008 7.3)
-
Step 100
100
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#ECD1D5
oklch(88.4% 0.031 7.6)
-
Step 300
300
#E1B2BA
oklch(80.8% 0.056 7)
-
Step 400
400
#D08997
oklch(70.6% 0.088 6.7)
-
Step 500
500
#C26B7D
oklch(63.1% 0.112 7.6)
-
Step 600
600
#AE5167
oklch(55.7% 0.123 7.1)
-
Step 700
700
#954155
oklch(49.1% 0.114 7.4)
-
Step 800
800
#793646
oklch(42.7% 0.095 7)
-
Step 900
900 (this color)
#683540
oklch(39.8% 0.074 7.2)
-
Step 950
950
#3A1C22
oklch(27% 0.048 8)
#683540 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) | #3E3E40 | 0.080 |
| Deuteranopia (no green cones) | #4B483F | 0.074 |
| Tritanopia (no blue cones) | #703039 | 0.020 |
| Achromatopsia (no color) | #444444 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #683540
#683540
oklch(39.8% 0.074 7.2)
- #00534D
#00534D
oklch(39.8% 0.07 186.4)
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 #683540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.014
- Brownish Purple #76424E ΔE 0.048
- Chestnut #742802 ΔE 0.070
- Wine Red #7B0323 ΔE 0.079
- Bordeaux #7B002C ΔE 0.080
- Merlot #730039 ΔE 0.082
- Wine #80013F ΔE 0.084
- Reddy Brown #6E1005 ΔE 0.084
Use #683540 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.