#543738
Closest named color: Purple Brown (#673A3F). oklch(37.1% 0.042 17), rgb(84, 55, 56).
Aa
White text reads best on this color (10.60:1).
About this color
#543738 is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.042 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.041 away. White text reads best on it, at 10.60:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.98:1 |
| White text | 10.60:1 |
Values
| HEX | #543738 |
| RGB | rgb(84, 55, 56) |
| HSL | hsl(358, 21%, 27%) |
| OKLCH | oklch(37.1% 0.042 17) |
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 #543738 | 10.60:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #543738 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #543738 text on white | 10.60:1 | AAA | Lc 94.5 | Preferred for body text |
| #543738 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E7E8
oklch(93.5% 0.01 9.5)
-
Step 200
200
#E4D5D5
oklch(88.5% 0.017 17.5)
-
Step 300
300
#D4B9B9
oklch(80.9% 0.031 17.8)
-
Step 400
400
#BE9495
oklch(70.6% 0.051 16.8)
-
Step 500
500
#AD7A7C
oklch(63.1% 0.064 16.4)
-
Step 600
600
#986365
oklch(55.7% 0.069 17)
-
Step 700
700
#815153
oklch(49% 0.065 17)
-
Step 800
800
#694344
oklch(42.7% 0.053 17.8)
-
Step 900
900 (this color)
#543738
oklch(37.1% 0.042 17)
-
Step 950
950
#322122
oklch(26.9% 0.026 15.1)
#543738 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) | #3C3B38 | 0.045 |
| Deuteranopia (no green cones) | #434138 | 0.042 |
| Tritanopia (no blue cones) | #5A3437 | 0.013 |
| Achromatopsia (no color) | #3F3F3F | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543738
#543738
oklch(37.1% 0.042 17)
- #234748
#234748
oklch(37.2% 0.042 197.9)
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 #543738, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.048
- Onyx #343A40 ΔE 0.057
- Chestnut #742802 ΔE 0.081
- Mud Brown #60460F ΔE 0.081
- Brownish Purple #76424E ΔE 0.082
- Gunmetal #293241 ΔE 0.083
- Charcoal #264653 ΔE 0.083
Use #543738 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.