#513645
Closest named color: Purple Brown (#673A3F). oklch(37% 0.045 345.1), rgb(81, 54, 69).
Aa
White text reads best on this color (10.69:1).
About this color
#513645 is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.045 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.048 away. White text reads best on it, at 10.69:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.96:1 |
| White text | 10.69:1 |
Values
| HEX | #513645 |
| RGB | rgb(81, 54, 69) |
| HSL | hsl(327, 20%, 26%) |
| OKLCH | oklch(37% 0.045 345.1) |
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 #513645 | 10.69:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #513645 | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #513645 text on white | 10.69:1 | AAA | Lc 94.7 | Preferred for body text |
| #513645 text on black | 1.96:1 | Fails | Lc -7.9 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E3D4DC
oklch(88.4% 0.02 344)
-
Step 300
300
#D2B8C5
oklch(80.9% 0.034 346.2)
-
Step 400
400
#BA94A8
oklch(70.8% 0.053 345.6)
-
Step 500
500
#A87993
oklch(63.1% 0.068 344.9)
-
Step 600
600
#93617D
oklch(55.5% 0.075 345.2)
-
Step 700
700
#7D506A
oklch(49% 0.07 344.4)
-
Step 800
800
#664256
oklch(42.7% 0.058 345.4)
-
Step 900
900 (this color)
#513645
oklch(37% 0.045 345.1)
-
Step 950
950
#31212A
oklch(27.1% 0.029 344.4)
#513645 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) | #383B46 | 0.046 |
| Deuteranopia (no green cones) | #3E4044 | 0.044 |
| Tritanopia (no blue cones) | #55363B | 0.019 |
| Achromatopsia (no color) | #3E3E3E | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513645
#513645
oklch(37% 0.045 345.1)
- #27473A
#27473A
oklch(36.9% 0.044 166.1)
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 #513645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.050
- Onyx #343A40 ΔE 0.054
- Gunmetal #293241 ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.076
- Charcoal #264653 ΔE 0.077
- Space Cadet #2B2D42 ΔE 0.079
- Dark Blue Grey #1F3B4D ΔE 0.080
Use #513645 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.