#642843
Closest named color: Purple Brown (#673A3F). oklch(37.1% 0.092 354.4), rgb(100, 40, 67).
Aa
White text reads best on this color (10.90:1).
About this color
#642843 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.092 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.051 away. White text reads best on it, at 10.90:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.092) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.92:1 |
| White text | 10.90:1 |
Values
| HEX | #642843 |
| RGB | rgb(100, 40, 67) |
| HSL | hsl(333, 43%, 27%) |
| OKLCH | oklch(37.1% 0.092 354.4) |
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 #642843 | 10.90:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #642843 | 1.92:1 | Fails | Lc 9.1 | Not readable |
| #642843 text on white | 10.90:1 | AAA | Lc 94.8 | Preferred for body text |
| #642843 text on black | 1.92:1 | Fails | Lc -7.8 | 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F6E5EB
oklch(93.7% 0.02 354)
-
Step 200
200
#EFCFDB
oklch(88.5% 0.039 353.3)
-
Step 300
300
#E6AFC3
oklch(81% 0.069 355.1)
-
Step 400
400
#D783A5
oklch(70.8% 0.111 354.5)
-
Step 500
500
#C9618F
oklch(63.1% 0.141 354.1)
-
Step 600
600
#B54579
oklch(55.7% 0.154 354.4)
-
Step 700
700
#9B3666
oklch(49.2% 0.143 354.2)
-
Step 800
800
#7E2D53
oklch(42.7% 0.119 354.2)
-
Step 900
900 (this color)
#642843
oklch(37.1% 0.092 354.4)
-
Step 950
950
#3C1928
oklch(27% 0.059 354.7)
#642843 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) | #313644 | 0.101 |
| Deuteranopia (no green cones) | #414142 | 0.092 |
| Tritanopia (no blue cones) | #6B2432 | 0.030 |
| Achromatopsia (no color) | #3D3D3D | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642843
#642843
oklch(37.1% 0.092 354.4)
- #004C3D
#004C3D
oklch(37.2% 0.071 173.7)
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 #642843, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.051
- Merlot #730039 ΔE 0.056
- Grape Purple #5D1451 ΔE 0.058
- Velvet #750851 ΔE 0.062
- Bordeaux #7B002C ΔE 0.066
- Wine #80013F ΔE 0.068
- Red Purple #820747 ΔE 0.070
- Wine Red #7B0323 ΔE 0.070
Use #642843 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.