#643045
Closest named color: Purple Brown (#673A3F). oklch(38.5% 0.079 355.9), rgb(100, 48, 69).
Aa
White text reads best on this color (10.24:1).
About this color
#643045 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.079 and its hue 356°. 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 10.24:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.05:1 |
| White text | 10.24:1 |
Values
| HEX | #643045 |
| RGB | rgb(100, 48, 69) |
| HSL | hsl(336, 35%, 29%) |
| OKLCH | oklch(38.5% 0.079 355.9) |
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 #643045 | 10.24:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #643045 | 2.05:1 | Fails | Lc 10.5 | Not readable |
| #643045 text on white | 10.24:1 | AAA | Lc 93.5 | Preferred for body text |
| #643045 text on black | 2.05:1 | Fails | Lc -9.0 | 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 900.
-
Step 50
50
#FAF3F5
oklch(97% 0.008 357.8)
-
Step 100
100
#F4E5EA
oklch(93.5% 0.018 355.1)
-
Step 200
200
#ECD1DA
oklch(88.6% 0.032 355.6)
-
Step 300
300
#E1B1C2
oklch(80.8% 0.06 355.4)
-
Step 400
400
#D087A2
oklch(70.6% 0.095 356)
-
Step 500
500
#C2688C
oklch(63.1% 0.121 355.8)
-
Step 600
600
#AD4E76
oklch(55.6% 0.132 355.8)
-
Step 700
700
#953E63
oklch(49.1% 0.124 356)
-
Step 800
800
#793451
oklch(42.8% 0.102 355.9)
-
Step 900
900 (this color)
#643045
oklch(38.5% 0.079 355.9)
-
Step 950
950
#391B27
oklch(26.9% 0.05 355.6)
#643045 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) | #373B46 | 0.087 |
| Deuteranopia (no green cones) | #454444 | 0.078 |
| Tritanopia (no blue cones) | #6B2D38 | 0.024 |
| Achromatopsia (no color) | #414141 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643045
#643045
oklch(38.5% 0.079 355.9)
- #005042
#005042
oklch(38.5% 0.072 175.7)
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 #643045, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.033
- Brownish Purple #76424E ΔE 0.062
- Merlot #730039 ΔE 0.072
- Grape Purple #5D1451 ΔE 0.074
- Velvet #750851 ΔE 0.076
- Bordeaux #7B002C ΔE 0.076
- Wine #80013F ΔE 0.078
- Wine Red #7B0323 ΔE 0.079
Use #643045 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.