#513638
Closest named color: Charcoal Grey (#3C4142). oklch(36.5% 0.039 14.3), rgb(81, 54, 56).
Aa
White text reads best on this color (10.85:1).
About this color
#513638 is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.039 and its hue 14°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.046 away. White text reads best on it, at 10.85:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #513638 |
| RGB | rgb(81, 54, 56) |
| HSL | hsl(356, 20%, 26%) |
| OKLCH | oklch(36.5% 0.039 14.3) |
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 #513638 | 10.85:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #513638 | 1.93:1 | Fails | Lc 8.8 | Not readable |
| #513638 text on white | 10.85:1 | AAA | Lc 95.1 | Preferred for body text |
| #513638 text on black | 1.93:1 | Fails | Lc -7.6 | 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 900.
-
Step 50
50
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E4D5D6
oklch(88.5% 0.017 12.8)
-
Step 300
300
#D3B9BB
oklch(80.8% 0.03 12.5)
-
Step 400
400
#BC9598
oklch(70.7% 0.047 13.2)
-
Step 500
500
#AB7B7E
oklch(63.2% 0.06 14.8)
-
Step 600
600
#956467
oklch(55.6% 0.064 15.3)
-
Step 700
700
#7F5256
oklch(49% 0.061 13.7)
-
Step 800
800
#684446
oklch(42.8% 0.05 15.7)
-
Step 900
900 (this color)
#513638
oklch(36.5% 0.039 14.3)
-
Step 950
950
#312223
oklch(27.1% 0.023 14.3)
#513638 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) | #3B3A38 | 0.041 |
| Deuteranopia (no green cones) | #413F38 | 0.039 |
| Tritanopia (no blue cones) | #563437 | 0.011 |
| Achromatopsia (no color) | #3D3D3D | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513638
#513638
oklch(36.5% 0.039 14.3)
- #244544
#244544
oklch(36.5% 0.039 193.1)
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 #513638, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.046
- Purple Brown #673A3F ΔE 0.047
- Onyx #343A40 ΔE 0.052
- Gunmetal #293241 ΔE 0.076
- Charcoal #264653 ΔE 0.080
- Space Cadet #2B2D42 ΔE 0.082
- Dark Grey Blue #29465B ΔE 0.083
- Dark Blue Grey #1F3B4D ΔE 0.084
Use #513638 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.