#66342B
Closest named color: Purple Brown (#673A3F). oklch(38.7% 0.074 31.4), rgb(102, 52, 43).
Aa
White text reads best on this color (10.04:1).
About this color
#66342B is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.074 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.030 away. White text reads best on it, at 10.04:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.09:1 |
| White text | 10.04:1 |
Values
| HEX | #66342B |
| RGB | rgb(102, 52, 43) |
| HSL | hsl(9, 41%, 28%) |
| OKLCH | oklch(38.7% 0.074 31.4) |
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 #66342B | 10.04:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #66342B | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #66342B text on white | 10.04:1 | AAA | Lc 93.0 | Preferred for body text |
| #66342B text on black | 2.09:1 | Fails | Lc -9.5 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E6E3
oklch(93.5% 0.016 32)
-
Step 200
200
#EDD2CD
oklch(88.5% 0.031 30.2)
-
Step 300
300
#E2B4AB
oklch(80.9% 0.055 31.1)
-
Step 400
400
#D28C7E
oklch(70.7% 0.089 31.8)
-
Step 500
500
#C46E5E
oklch(63.1% 0.113 31.6)
-
Step 600
600
#B05444
oklch(55.7% 0.124 31.4)
-
Step 700
700
#974436
oklch(49.2% 0.115 31.3)
-
Step 800
800
#7A382D
oklch(42.6% 0.095 31.1)
-
Step 900
900 (this color)
#66342B
oklch(38.7% 0.074 31.4)
-
Step 950
950
#3A1D18
oklch(26.9% 0.047 30.8)
#66342B 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) | #403C2A | 0.075 |
| Deuteranopia (no green cones) | #4C462A | 0.069 |
| Tritanopia (no blue cones) | #6F2C32 | 0.030 |
| Achromatopsia (no color) | #424242 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66342B
#66342B
oklch(38.7% 0.074 31.4)
- #004E59
#004E59
oklch(38.9% 0.067 210.9)
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 #66342B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.030
- Chestnut #742802 ΔE 0.045
- Brownish Purple #76424E ΔE 0.067
- Reddy Brown #6E1005 ΔE 0.068
- Mud Brown #60460F ΔE 0.069
- Red Brown #8B2E16 ΔE 0.076
- Blood #770001 ΔE 0.079
- Wine Red #7B0323 ΔE 0.079
Use #66342B 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.