#642B4D
Closest named color: Purple Brown (#673A3F). oklch(38% 0.093 345.7), rgb(100, 43, 77).
Aa
White text reads best on this color (10.52:1).
About this color
#642B4D is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.093 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.053 away. White text reads best on it, at 10.52:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.99:1 |
| White text | 10.52:1 |
Values
| HEX | #642B4D |
| RGB | rgb(100, 43, 77) |
| HSL | hsl(324, 40%, 28%) |
| OKLCH | oklch(38% 0.093 345.7) |
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 #642B4D | 10.52:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #642B4D | 1.99:1 | Fails | Lc 9.9 | Not readable |
| #642B4D text on white | 10.52:1 | AAA | Lc 94.0 | Preferred for body text |
| #642B4D text on black | 1.99:1 | Fails | Lc -8.5 | 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
#FAF3F7
oklch(97.1% 0.009 341.8)
-
Step 100
100
#F5E5ED
oklch(93.7% 0.02 345.7)
-
Step 200
200
#EDCFDF
oklch(88.4% 0.039 344.5)
-
Step 300
300
#E3AFCA
oklch(80.9% 0.07 346.2)
-
Step 400
400
#D383B0
oklch(70.7% 0.113 345.6)
-
Step 500
500
#C5629C
oklch(63.1% 0.143 345.8)
-
Step 600
600
#B04687
oklch(55.6% 0.156 345.6)
-
Step 700
700
#973772
oklch(49.1% 0.145 345.9)
-
Step 800
800
#7B2E5D
oklch(42.7% 0.121 345.8)
-
Step 900
900 (this color)
#642B4D
oklch(38% 0.093 345.7)
-
Step 950
950
#3A192D
oklch(26.9% 0.06 344.6)
#642B4D 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) | #30394E | 0.100 |
| Deuteranopia (no green cones) | #40434C | 0.090 |
| Tritanopia (no blue cones) | #6A2A38 | 0.038 |
| Achromatopsia (no color) | #3F3F3F | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B4D
#642B4D
oklch(38% 0.093 345.7)
- #004F38
#004F38
oklch(37.9% 0.079 165.7)
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 #642B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.053
- Grape Purple #5D1451 ΔE 0.055
- Velvet #750851 ΔE 0.059
- Merlot #730039 ΔE 0.064
- Rich Purple #720058 ΔE 0.068
- Red Purple #820747 ΔE 0.071
- Wine #80013F ΔE 0.072
- Brownish Purple #76424E ΔE 0.074
Use #642B4D 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.