#64283D
Closest named color: Purple Brown (#673A3F). oklch(36.9% 0.09 0.5), rgb(100, 40, 61).
Aa
White text reads best on this color (10.97:1).
About this color
#64283D is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.090 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.047 away. White text reads best on it, at 10.97:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #64283D |
| RGB | rgb(100, 40, 61) |
| HSL | hsl(339, 43%, 27%) |
| OKLCH | oklch(36.9% 0.09 0.5) |
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 #64283D | 10.97:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #64283D | 1.91:1 | Fails | Lc 9.0 | Not readable |
| #64283D text on white | 10.97:1 | AAA | Lc 94.9 | Preferred for body text |
| #64283D text on black | 1.91:1 | Fails | Lc -7.7 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F6E5E9
oklch(93.7% 0.019 1.4)
-
Step 200
200
#EFCFD8
oklch(88.4% 0.038 359)
-
Step 300
300
#E6AFBE
oklch(80.9% 0.067 0.7)
-
Step 400
400
#D8839D
oklch(70.7% 0.109 0.5)
-
Step 500
500
#CB6285
oklch(63.2% 0.138 0.7)
-
Step 600
600
#B6466F
oklch(55.6% 0.15 0.5)
-
Step 700
700
#9C375D
oklch(49.1% 0.139 0.3)
-
Step 800
800
#7F2E4C
oklch(42.7% 0.116 0.3)
-
Step 900
900 (this color)
#64283D
oklch(36.9% 0.09 0.5)
-
Step 950
950
#3C1925
oklch(26.9% 0.057 359.9)
#64283D 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) | #32353E | 0.099 |
| Deuteranopia (no green cones) | #42413C | 0.091 |
| Tritanopia (no blue cones) | #6C2330 | 0.026 |
| Achromatopsia (no color) | #3C3C3C | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64283D
#64283D
oklch(36.9% 0.09 0.5)
- #004B41
#004B41
oklch(37% 0.067 180)
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 #64283D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.047
- Merlot #730039 ΔE 0.057
- Bordeaux #7B002C ΔE 0.063
- Wine Red #7B0323 ΔE 0.065
- Grape Purple #5D1451 ΔE 0.065
- Burgundy #610023 ΔE 0.067
- Claret #680018 ΔE 0.068
- Velvet #750851 ΔE 0.069
Use #64283D 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.