#673933
Closest named color: Purple Brown (#673A3F). oklch(40% 0.067 28.3), rgb(103, 57, 51).
Aa
White text reads best on this color (9.50:1).
About this color
#673933 is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.067 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.018 away. White text reads best on it, at 9.50:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.20:1 |
| White text | 9.50:1 |
Values
| HEX | #673933 |
| RGB | rgb(103, 57, 51) |
| HSL | hsl(7, 34%, 30%) |
| OKLCH | oklch(40% 0.067 28.3) |
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 #673933 | 9.50:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #673933 | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #673933 text on white | 9.50:1 | AAA | Lc 91.8 | Preferred for body text |
| #673933 text on black | 2.20:1 | Fails | Lc -10.6 | 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
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F3E6E4
oklch(93.5% 0.014 28)
-
Step 200
200
#EBD3CF
oklch(88.6% 0.027 29)
-
Step 300
300
#DFB5AF
oklch(80.9% 0.05 27.7)
-
Step 400
400
#CE8E85
oklch(70.8% 0.08 28.1)
-
Step 500
500
#BF7066
oklch(63% 0.102 28)
-
Step 600
600
#AB574D
oklch(55.6% 0.112 28.2)
-
Step 700
700
#92473E
oklch(49% 0.103 28.4)
-
Step 800
800
#773B34
oklch(42.8% 0.085 28.1)
-
Step 900
900 (this color)
#673933
oklch(40% 0.067 28.3)
-
Step 950
950
#391E1B
oklch(27.1% 0.043 27)
#673933 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) | #434032 | 0.069 |
| Deuteranopia (no green cones) | #4F4932 | 0.062 |
| Tritanopia (no blue cones) | #703238 | 0.027 |
| Achromatopsia (no color) | #464646 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673933
#673933
oklch(40% 0.067 28.3)
- #06515B
#06515B
oklch(39.9% 0.067 209.5)
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 #673933, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.018
- Brownish Purple #76424E ΔE 0.054
- Chestnut #742802 ΔE 0.055
- Mud Brown #60460F ΔE 0.066
- Red Brown #8B2E16 ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.079
- Rust Brown #8B3103 ΔE 0.079
- Reddy Brown #6E1005 ΔE 0.081
Use #673933 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.