#64283B
Closest named color: Purple Brown (#673A3F). oklch(36.8% 0.089 2.6), rgb(100, 40, 59).
Aa
White text reads best on this color (11.00:1).
About this color
#64283B is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.089 and its hue 3°. 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 11.00:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.90:1 |
| White text | 11.00:1 |
Values
| HEX | #64283B |
| RGB | rgb(100, 40, 59) |
| HSL | hsl(341, 43%, 27%) |
| OKLCH | oklch(36.8% 0.089 2.6) |
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 #64283B | 11.00:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #64283B | 1.90:1 | Fails | Lc 8.9 | Not readable |
| #64283B text on white | 11.00:1 | AAA | Lc 95.0 | Preferred for body text |
| #64283B text on black | 1.90:1 | Fails | Lc -7.6 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F6E5E9
oklch(93.7% 0.019 1.4)
-
Step 200
200
#F0D0D7
oklch(88.6% 0.037 3.1)
-
Step 300
300
#E7AFBD
oklch(80.9% 0.068 2.1)
-
Step 400
400
#D8849A
oklch(70.8% 0.106 3.2)
-
Step 500
500
#CB6282
oklch(63.1% 0.137 2.5)
-
Step 600
600
#B6466B
oklch(55.5% 0.149 2.7)
-
Step 700
700
#9C375A
oklch(49% 0.138 2.2)
-
Step 800
800
#7F2F49
oklch(42.7% 0.113 3)
-
Step 900
900 (this color)
#64283B
oklch(36.8% 0.089 2.6)
-
Step 950
950
#3C1924
oklch(26.9% 0.057 1.7)
#64283B 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) | #33353C | 0.098 |
| Deuteranopia (no green cones) | #42403A | 0.090 |
| Tritanopia (no blue cones) | #6C222F | 0.024 |
| Achromatopsia (no color) | #3C3C3C | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64283B
#64283B
oklch(36.8% 0.089 2.6)
- #004A42
#004A42
oklch(36.7% 0.066 182.7)
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 #64283B, 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 0.062
- Wine Red #7B0323 ΔE 0.064
- Claret #680018 ΔE 0.066
- Burgundy #610023 ΔE 0.066
- Grape Purple #5D1451 ΔE 0.068
- Reddy Brown #6E1005 ΔE 0.069
Use #64283B 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.