#64283F
Closest named color: Purple Brown (#673A3F). oklch(37% 0.091 358.5), rgb(100, 40, 63).
Aa
White text reads best on this color (10.95:1).
About this color
#64283F is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.091 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.048 away. White text reads best on it, at 10.95:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.91:1 |
| White text | 10.95:1 |
Values
| HEX | #64283F |
| RGB | rgb(100, 40, 63) |
| HSL | hsl(337, 43%, 27%) |
| OKLCH | oklch(37% 0.091 358.5) |
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 #64283F | 10.95:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #64283F | 1.91:1 | Fails | Lc 9.0 | Not readable |
| #64283F text on white | 10.95:1 | AAA | Lc 94.9 | Preferred for body text |
| #64283F 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
#F6E5EA
oklch(93.7% 0.02 357.6)
-
Step 200
200
#EFCFD9
oklch(88.4% 0.038 357.1)
-
Step 300
300
#E6AFC0
oklch(80.9% 0.068 358.4)
-
Step 400
400
#D783A0
oklch(70.7% 0.109 358.1)
-
Step 500
500
#CA6288
oklch(63.1% 0.138 358.7)
-
Step 600
600
#B54672
oklch(55.6% 0.15 358.5)
-
Step 700
700
#9C3660
oklch(49.1% 0.141 358.2)
-
Step 800
800
#7F2E4E
oklch(42.8% 0.117 358.7)
-
Step 900
900 (this color)
#64283F
oklch(37% 0.091 358.5)
-
Step 950
950
#3C1926
oklch(26.9% 0.058 358.2)
#64283F 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) | #323540 | 0.099 |
| Deuteranopia (no green cones) | #42413E | 0.091 |
| Tritanopia (no blue cones) | #6C2331 | 0.027 |
| Achromatopsia (no color) | #3C3C3C | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64283F
#64283F
oklch(37% 0.091 358.5)
- #004B40
#004B40
oklch(37% 0.068 178.7)
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 #64283F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.048
- Merlot #730039 ΔE 0.056
- Grape Purple #5D1451 ΔE 0.063
- Bordeaux #7B002C ΔE 0.064
- Wine Red #7B0323 ΔE 0.067
- Velvet #750851 ΔE 0.067
- Burgundy #610023 ΔE 0.068
- Wine #80013F ΔE 0.068
Use #64283F 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.