#642D45
Closest named color: Purple Brown (#673A3F). oklch(38% 0.085 354.4), rgb(100, 45, 69).
Aa
White text reads best on this color (10.48:1).
About this color
#642D45 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.085 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.041 away. White text reads best on it, at 10.48:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.00:1 |
| White text | 10.48:1 |
Values
| HEX | #642D45 |
| RGB | rgb(100, 45, 69) |
| HSL | hsl(334, 38%, 28%) |
| OKLCH | oklch(38% 0.085 354.4) |
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 #642D45 | 10.48:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #642D45 | 2.00:1 | Fails | Lc 10.0 | Not readable |
| #642D45 text on white | 10.48:1 | AAA | Lc 94.0 | Preferred for body text |
| #642D45 text on black | 2.00:1 | Fails | Lc -8.6 | 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
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F5E5EA
oklch(93.6% 0.019 356.4)
-
Step 200
200
#EDD0DA
oklch(88.5% 0.035 355)
-
Step 300
300
#E3B0C3
oklch(80.9% 0.064 354.4)
-
Step 400
400
#D386A4
oklch(70.8% 0.101 355)
-
Step 500
500
#C5658E
oklch(63.1% 0.13 354.5)
-
Step 600
600
#B04A78
oklch(55.6% 0.142 354.5)
-
Step 700
700
#973B65
oklch(49.1% 0.131 354.6)
-
Step 800
800
#7B3153
oklch(42.7% 0.11 354.1)
-
Step 900
900 (this color)
#642D45
oklch(38% 0.085 354.4)
-
Step 950
950
#3A1A28
oklch(26.9% 0.054 353.7)
#642D45 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) | #343946 | 0.093 |
| Deuteranopia (no green cones) | #434344 | 0.084 |
| Tritanopia (no blue cones) | #6B2A36 | 0.027 |
| Achromatopsia (no color) | #3F3F3F | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642D45
#642D45
oklch(38% 0.085 354.4)
- #004E40
#004E40
oklch(37.9% 0.071 175.3)
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 #642D45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.041
- Merlot #730039 ΔE 0.065
- Grape Purple #5D1451 ΔE 0.066
- Brownish Purple #76424E ΔE 0.068
- Velvet #750851 ΔE 0.070
- Bordeaux #7B002C ΔE 0.072
- Wine #80013F ΔE 0.073
- Red Purple #820747 ΔE 0.075
Use #642D45 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.