#523733
Closest named color: Charcoal Grey (#3C4142). oklch(36.7% 0.04 28.5), rgb(82, 55, 51).
Aa
White text reads best on this color (10.75:1).
About this color
#523733 is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.040 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.047 away. White text reads best on it, at 10.75:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #523733 |
| RGB | rgb(82, 55, 51) |
| HSL | hsl(8, 23%, 26%) |
| OKLCH | oklch(36.7% 0.04 28.5) |
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 #523733 | 10.75:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #523733 | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #523733 text on white | 10.75:1 | AAA | Lc 94.8 | Preferred for body text |
| #523733 text on black | 1.95:1 | Fails | Lc -7.8 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E8E7
oklch(93.7% 0.009 26)
-
Step 200
200
#E4D5D3
oklch(88.5% 0.017 26.7)
-
Step 300
300
#D3BAB6
oklch(80.9% 0.029 28.6)
-
Step 400
400
#BD9690
oklch(70.8% 0.048 28.4)
-
Step 500
500
#AB7C75
oklch(63.1% 0.06 28.4)
-
Step 600
600
#96655D
oklch(55.6% 0.065 29.5)
-
Step 700
700
#80534D
oklch(49% 0.062 27.8)
-
Step 800
800
#68443F
oklch(42.6% 0.051 28.1)
-
Step 900
900 (this color)
#523733
oklch(36.7% 0.04 28.5)
-
Step 950
950
#32221F
oklch(27.1% 0.025 30.8)
#523733 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) | #3D3A33 | 0.039 |
| Deuteranopia (no green cones) | #434033 | 0.038 |
| Tritanopia (no blue cones) | #583436 | 0.016 |
| Achromatopsia (no color) | #3E3E3E | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523733
#523733
oklch(36.7% 0.04 28.5)
- #24454A
#24454A
oklch(36.7% 0.04 208.1)
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 #523733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.047
- Purple Brown #673A3F ΔE 0.047
- Onyx #343A40 ΔE 0.055
- Mud Brown #60460F ΔE 0.077
- Chestnut #742802 ΔE 0.080
- Gunmetal #293241 ΔE 0.081
- Charcoal #264653 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.085
Use #523733 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.