#513B3C
Closest named color: Charcoal Grey (#3C4142). oklch(37.7% 0.031 15.6), rgb(81, 59, 60).
Aa
White text reads best on this color (10.29:1).
About this color
#513B3C is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.031 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.038 away. White text reads best on it, at 10.29:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.04:1 |
| White text | 10.29:1 |
Values
| HEX | #513B3C |
| RGB | rgb(81, 59, 60) |
| HSL | hsl(357, 16%, 27%) |
| OKLCH | oklch(37.7% 0.031 15.6) |
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 #513B3C | 10.29:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #513B3C | 2.04:1 | Fails | Lc 10.1 | Not readable |
| #513B3C text on white | 10.29:1 | AAA | Lc 93.9 | Preferred for body text |
| #513B3C text on black | 2.04:1 | Fails | Lc -8.7 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EEE8E8
oklch(93.6% 0.007 17.3)
-
Step 200
200
#E2D6D6
oklch(88.6% 0.013 17.4)
-
Step 300
300
#CFBBBB
oklch(80.9% 0.023 17.6)
-
Step 400
400
#B79899
oklch(70.8% 0.037 15.9)
-
Step 500
500
#A57E80
oklch(63.1% 0.049 15.1)
-
Step 600
600
#8F6769
oklch(55.5% 0.052 15.5)
-
Step 700
700
#7A5657
oklch(49.2% 0.048 17.1)
-
Step 800
800
#634648
oklch(42.7% 0.04 14.3)
-
Step 900
900 (this color)
#513B3C
oklch(37.7% 0.031 15.6)
-
Step 950
950
#2F2323
oklch(27% 0.018 18.4)
#513B3C 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) | #3F3E3C | 0.033 |
| Deuteranopia (no green cones) | #44423C | 0.030 |
| Tritanopia (no blue cones) | #55393B | 0.009 |
| Achromatopsia (no color) | #404040 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513B3C
#513B3C
oklch(37.7% 0.031 15.6)
- #2D4747
#2D4747
oklch(37.7% 0.032 195.9)
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 #513B3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.038
- Purple Brown #673A3F ΔE 0.043
- Onyx #343A40 ΔE 0.052
- Charcoal #264653 ΔE 0.072
- Dark Slate Gray #2F4F4F ΔE 0.074
- Dark Grey Blue #29465B ΔE 0.075
- Mud Brown #60460F ΔE 0.079
- Gunmetal #293241 ΔE 0.080
Use #513B3C 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.