#64423D
Closest named color: Purple Brown (#673A3F). oklch(41.6% 0.048 28.6), rgb(100, 66, 61).
Aa
White text reads best on this color (8.79:1).
About this color
#64423D is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.048 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.024 away. White text reads best on it, at 8.79:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #64423D |
| RGB | rgb(100, 66, 61) |
| HSL | hsl(8, 24%, 32%) |
| OKLCH | oklch(41.6% 0.048 28.6) |
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 #64423D | 8.79:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #64423D | 2.38:1 | Fails | Lc 14.0 | Not readable |
| #64423D text on white | 8.79:1 | AAA | Lc 90.0 | Fine for body text |
| #64423D text on black | 2.38:1 | Fails | Lc -12.3 | 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 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
#E3D5D3
oklch(88.4% 0.016 27.3)
-
Step 300
300
#D2BAB6
oklch(80.8% 0.028 29)
-
Step 400
400
#BB9691
oklch(70.6% 0.045 27.2)
-
Step 500
500
#AA7D76
oklch(63.2% 0.057 28.8)
-
Step 600
600
#95655E
oklch(55.6% 0.064 28.5)
-
Step 700
700
#7F544E
oklch(49.1% 0.059 28.1)
-
Step 800
800 (this color)
#64423D
oklch(41.6% 0.048 28.6)
-
Step 900
900
#543A36
oklch(37.7% 0.038 28.8)
-
Step 950
950
#312220
oklch(26.9% 0.024 27.3)
#64423D 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) | #49463D | 0.049 |
| Deuteranopia (no green cones) | #514D3D | 0.045 |
| Tritanopia (no blue cones) | #6B3E41 | 0.019 |
| Achromatopsia (no color) | #4B4B4B | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64423D
#64423D
oklch(41.6% 0.048 28.6)
- #29545A
#29545A
oklch(41.8% 0.049 207.3)
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 #64423D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.024
- Brownish Purple #76424E ΔE 0.045
- Mud Brown #60460F ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.072
- Chestnut #742802 ΔE 0.076
- Milk Chocolate #7F4E1E ΔE 0.079
- Red Brown #8B2E16 ΔE 0.086
- Dark Slate Gray #2F4F4F ΔE 0.087
Use #64423D 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.