#643228
Closest named color: Purple Brown (#673A3F). oklch(38% 0.074 32.5), rgb(100, 50, 40).
Aa
White text reads best on this color (10.35:1).
About this color
#643228 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.074 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.036 away. White text reads best on it, at 10.35:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.02:1 |
| White text | 10.35:1 |
Values
| HEX | #643228 |
| RGB | rgb(100, 50, 40) |
| HSL | hsl(10, 43%, 27%) |
| OKLCH | oklch(38% 0.074 32.5) |
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 #643228 | 10.35:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #643228 | 2.02:1 | Fails | Lc 10.2 | Not readable |
| #643228 text on white | 10.35:1 | AAA | Lc 93.7 | Preferred for body text |
| #643228 text on black | 2.02:1 | Fails | Lc -8.8 | 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
#EDD2CC
oklch(88.5% 0.031 32.6)
-
Step 300
300
#E2B4AA
oklch(80.8% 0.056 32.4)
-
Step 400
400
#D28C7D
oklch(70.7% 0.089 32.6)
-
Step 500
500
#C56E5C
oklch(63.2% 0.114 32.7)
-
Step 600
600
#B05442
oklch(55.6% 0.124 32.5)
-
Step 700
700
#974434
oklch(49.1% 0.115 32.5)
-
Step 800
800
#7B382B
oklch(42.7% 0.097 32.5)
-
Step 900
900 (this color)
#643228
oklch(38% 0.074 32.5)
-
Step 950
950
#3A1D17
oklch(26.9% 0.047 32.7)
#643228 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) | #3E3A27 | 0.075 |
| Deuteranopia (no green cones) | #4B4427 | 0.068 |
| Tritanopia (no blue cones) | #6D2A30 | 0.031 |
| Achromatopsia (no color) | #404040 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643228
#643228
oklch(38% 0.074 32.5)
- #004B57
#004B57
oklch(37.9% 0.066 212.9)
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 #643228, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.036
- Chestnut #742802 ΔE 0.044
- Reddy Brown #6E1005 ΔE 0.063
- Mud Brown #60460F ΔE 0.071
- Brownish Purple #76424E ΔE 0.074
- Blood #770001 ΔE 0.076
- Wine Red #7B0323 ΔE 0.078
- Red Brown #8B2E16 ΔE 0.080
Use #643228 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.