#673428
Closest named color: Purple Brown (#673A3F). oklch(38.8% 0.076 34.3), rgb(103, 52, 40).
Aa
White text reads best on this color (10.00:1).
About this color
#673428 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.076 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.033 away. White text reads best on it, at 10.00:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #673428 |
| RGB | rgb(103, 52, 40) |
| HSL | hsl(11, 44%, 28%) |
| OKLCH | oklch(38.8% 0.076 34.3) |
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 #673428 | 10.00:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #673428 | 2.09:1 | Fails | Lc 11.0 | Not readable |
| #673428 text on white | 10.00:1 | AAA | Lc 92.9 | Preferred for body text |
| #673428 text on black | 2.09:1 | Fails | Lc -9.6 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EDD2CB
oklch(88.4% 0.032 34.9)
-
Step 300
300
#E3B4A8
oklch(80.9% 0.058 34.7)
-
Step 400
400
#D38C7A
oklch(70.7% 0.091 34.9)
-
Step 500
500
#C66D58
oklch(63.1% 0.118 34.3)
-
Step 600
600
#B1533E
oklch(55.5% 0.128 33.9)
-
Step 700
700
#984330
oklch(49.1% 0.119 34)
-
Step 800
800
#7B3828
oklch(42.6% 0.098 34.7)
-
Step 900
900 (this color)
#673428
oklch(38.8% 0.076 34.3)
-
Step 950
950
#3B1D16
oklch(27% 0.049 34.1)
#673428 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) | #413C27 | 0.075 |
| Deuteranopia (no green cones) | #4D4627 | 0.069 |
| Tritanopia (no blue cones) | #712B31 | 0.034 |
| Achromatopsia (no color) | #424242 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673428
#673428
oklch(38.8% 0.076 34.3)
- #004E5B
#004E5B
oklch(39% 0.068 213.7)
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 #673428, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.033
- Chestnut #742802 ΔE 0.041
- Mud Brown #60460F ΔE 0.066
- Reddy Brown #6E1005 ΔE 0.066
- Brownish Purple #76424E ΔE 0.068
- Red Brown #8B2E16 ΔE 0.073
- Rust Brown #8B3103 ΔE 0.077
- Blood #770001 ΔE 0.077
Use #673428 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.