#63443D
Closest named color: Purple Brown (#673A3F). oklch(41.9% 0.045 33.2), rgb(99, 68, 61).
Aa
White text reads best on this color (8.66:1).
About this color
#63443D is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.045 and its hue 33°. 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 8.66:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #63443D |
| RGB | rgb(99, 68, 61) |
| HSL | hsl(11, 24%, 31%) |
| OKLCH | oklch(41.9% 0.045 33.2) |
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 #63443D | 8.66:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #63443D | 2.42:1 | Fails | Lc 14.3 | Not readable |
| #63443D text on white | 8.66:1 | AAA | Lc 89.6 | Fine for body text |
| #63443D text on black | 2.42:1 | Fails | Lc -12.6 | 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
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E2D6D3
oklch(88.5% 0.014 34.3)
-
Step 300
300
#D1BBB6
oklch(80.9% 0.026 32.9)
-
Step 400
400
#B99890
oklch(70.7% 0.041 33.9)
-
Step 500
500
#A77E75
oklch(63.1% 0.053 32.6)
-
Step 600
600
#92675D
oklch(55.6% 0.058 33.5)
-
Step 700
700
#7C564D
oklch(49.1% 0.053 33.8)
-
Step 800
800 (this color)
#63443D
oklch(41.9% 0.045 33.2)
-
Step 900
900
#533B36
oklch(37.8% 0.035 32)
-
Step 950
950
#30231F
oklch(27% 0.021 37.8)
#63443D 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) | #4B483C | 0.044 |
| Deuteranopia (no green cones) | #524E3D | 0.041 |
| Tritanopia (no blue cones) | #6A4042 | 0.020 |
| Achromatopsia (no color) | #4B4B4B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63443D
#63443D
oklch(41.9% 0.045 33.2)
- #2E535C
#2E535C
oklch(41.8% 0.045 215.1)
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 #63443D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.030
- Brownish Purple #76424E ΔE 0.047
- Mud Brown #60460F ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.071
- Milk Chocolate #7F4E1E ΔE 0.076
- Chestnut #742802 ΔE 0.079
- Dark Slate Gray #2F4F4F ΔE 0.083
- Green Brown #544E03 ΔE 0.084
Use #63443D 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.