#66433E
Closest named color: Purple Brown (#673A3F). oklch(42.1% 0.05 28.3), rgb(102, 67, 62).
Aa
White text reads best on this color (8.61:1).
About this color
#66433E is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.050 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.026 away. White text reads best on it, at 8.61:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.050) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #66433E |
| RGB | rgb(102, 67, 62) |
| HSL | hsl(8, 24%, 32%) |
| OKLCH | oklch(42.1% 0.05 28.3) |
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 #66433E | 8.61:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #66433E | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #66433E text on white | 8.61:1 | AAA | Lc 89.5 | Fine for body text |
| #66433E text on black | 2.43:1 | Fails | Lc -12.7 | 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 800.
-
Step 50
50
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E4D5D3
oklch(88.5% 0.017 26.7)
-
Step 300
300
#D3BAB6
oklch(80.9% 0.029 28.6)
-
Step 400
400
#BC9690
oklch(70.7% 0.047 28.7)
-
Step 500
500
#AB7C75
oklch(63.1% 0.06 28.4)
-
Step 600
600
#96655E
oklch(55.7% 0.065 28.3)
-
Step 700
700
#7F544D
oklch(49.1% 0.059 29.5)
-
Step 800
800 (this color)
#66433E
oklch(42.1% 0.05 28.3)
-
Step 900
900
#543A36
oklch(37.7% 0.038 28.8)
-
Step 950
950
#322220
oklch(27.1% 0.025 26.9)
#66433E 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) | #4B483E | 0.049 |
| Deuteranopia (no green cones) | #534F3E | 0.047 |
| Tritanopia (no blue cones) | #6D3F42 | 0.019 |
| Achromatopsia (no color) | #4C4C4C | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66433E
#66433E
oklch(42.1% 0.05 28.3)
- #29555C
#29555C
oklch(42.1% 0.05 209)
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 #66433E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.026
- Brownish Purple #76424E ΔE 0.041
- Mud Brown #60460F ΔE 0.062
- Milk Chocolate #7F4E1E ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.076
- Chestnut #742802 ΔE 0.077
- Red Brown #8B2E16 ΔE 0.084
- Saddle Brown #8B4513 ΔE 0.085
Use #66433E 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.