#733640
Closest named color: Purple Brown (#673A3F). oklch(41.6% 0.086 11.3), rgb(115, 54, 64).
Aa
White text reads best on this color (9.01:1).
About this color
#733640 is a dark, moderately saturated red. In OKLCH its lightness is 42%, its chroma 0.086 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.025 away. White text reads best on it, at 9.01:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.33:1 |
| White text | 9.01:1 |
Values
| HEX | #733640 |
| RGB | rgb(115, 54, 64) |
| HSL | hsl(350, 36%, 33%) |
| OKLCH | oklch(41.6% 0.086 11.3) |
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 #733640 | 9.01:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #733640 | 2.33:1 | Fails | Lc 13.6 | Not readable |
| #733640 text on white | 9.01:1 | AAA | Lc 90.3 | Preferred for body text |
| #733640 text on black | 2.33:1 | 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
#FAF4F4
oklch(97.2% 0.006 17.3)
-
Step 100
100
#F3E6E7
oklch(93.6% 0.014 12)
-
Step 200
200
#EBD2D4
oklch(88.5% 0.028 12.2)
-
Step 300
300
#DFB4B8
oklch(80.9% 0.05 12)
-
Step 400
400
#CD8C94
oklch(70.7% 0.08 11.2)
-
Step 500
500
#BF6E7A
oklch(63.1% 0.103 10.9)
-
Step 600
600
#AA5563
oklch(55.6% 0.112 11)
-
Step 700
700
#924552
oklch(49.2% 0.104 11.1)
-
Step 800
800 (this color)
#733640
oklch(41.6% 0.086 11.3)
-
Step 900
900
#603238
oklch(37.8% 0.067 12.5)
-
Step 950
950
#381D21
oklch(26.9% 0.043 10.8)
#733640 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) | #424240 | 0.094 |
| Deuteranopia (no green cones) | #514E3F | 0.088 |
| Tritanopia (no blue cones) | #7C2F3A | 0.022 |
| Achromatopsia (no color) | #494949 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #733640
#733640
oklch(41.6% 0.086 11.3)
- #005855
#005855
oklch(41.6% 0.072 190.8)
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 #733640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.025
- Brownish Purple #76424E ΔE 0.033
- Red Brown #8B2E16 ΔE 0.066
- Chestnut #742802 ΔE 0.067
- Rust Brown #8B3103 ΔE 0.075
- Wine Red #7B0323 ΔE 0.076
- Bordeaux #7B002C ΔE 0.076
- Red Wine #8C0034 ΔE 0.078
Use #733640 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.