#64333C
Closest named color: Purple Brown (#673A3F). oklch(38.7% 0.071 9.2), rgb(100, 51, 60).
Aa
White text reads best on this color (10.09:1).
About this color
#64333C is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.071 and its hue 9°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.020 away. White text reads best on it, at 10.09:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #64333C |
| RGB | rgb(100, 51, 60) |
| HSL | hsl(349, 32%, 30%) |
| OKLCH | oklch(38.7% 0.071 9.2) |
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 #64333C | 10.09:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #64333C | 2.08:1 | Fails | Lc 10.8 | Not readable |
| #64333C text on white | 10.09:1 | AAA | Lc 93.2 | Preferred for body text |
| #64333C text on black | 2.08:1 | Fails | Lc -9.3 | 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
#FAF4F4
oklch(97.2% 0.006 17.3)
-
Step 100
100
#F4E6E7
oklch(93.6% 0.015 12.4)
-
Step 200
200
#ECD2D5
oklch(88.6% 0.029 9.8)
-
Step 300
300
#E0B3B9
oklch(80.9% 0.053 9.3)
-
Step 400
400
#CF8A95
oklch(70.6% 0.085 9)
-
Step 500
500
#C16C7B
oklch(63.1% 0.109 9.4)
-
Step 600
600
#AC5364
oklch(55.6% 0.117 9.7)
-
Step 700
700
#944353
oklch(49.2% 0.11 9.7)
-
Step 800
800
#783744
oklch(42.7% 0.092 9.2)
-
Step 900
900 (this color)
#64333C
oklch(38.7% 0.071 9.2)
-
Step 950
950
#391D22
oklch(27.1% 0.044 9)
#64333C 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) | #3C3C3C | 0.077 |
| Deuteranopia (no green cones) | #48453B | 0.071 |
| Tritanopia (no blue cones) | #6C2E36 | 0.019 |
| Achromatopsia (no color) | #424242 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64333C
#64333C
oklch(38.7% 0.071 9.2)
- #004F4C
#004F4C
oklch(38.6% 0.067 190.4)
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 #64333C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.020
- Brownish Purple #76424E ΔE 0.059
- Chestnut #742802 ΔE 0.067
- Wine Red #7B0323 ΔE 0.078
- Reddy Brown #6E1005 ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.079
- Bordeaux #7B002C ΔE 0.079
- Merlot #730039 ΔE 0.081
Use #64333C 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.