#513333
Closest named color: Charcoal Grey (#3C4142). oklch(35.7% 0.044 19.4), rgb(81, 51, 51).
Aa
White text reads best on this color (11.22:1).
About this color
#513333 is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.044 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.052 away. White text reads best on it, at 11.22:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.87:1 |
| White text | 11.22:1 |
Values
| HEX | #513333 |
| RGB | rgb(81, 51, 51) |
| HSL | hsl(0, 23%, 26%) |
| OKLCH | oklch(35.7% 0.044 19.4) |
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 #513333 | 11.22:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #513333 | 1.87:1 | Fails | Lc 8.1 | Not readable |
| #513333 text on white | 11.22:1 | AAA | Lc 95.8 | Preferred for body text |
| #513333 text on black | 1.87:1 | Fails | Lc 0.0 | 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
#F0E7E7
oklch(93.5% 0.01 17.3)
-
Step 200
200
#E5D5D4
oklch(88.6% 0.018 21.8)
-
Step 300
300
#D5B9B8
oklch(80.9% 0.032 20.3)
-
Step 400
400
#BF9493
oklch(70.7% 0.052 20)
-
Step 500
500
#AF7979
oklch(63.1% 0.068 19.1)
-
Step 600
600
#9A6262
oklch(55.7% 0.073 19.6)
-
Step 700
700
#835151
oklch(49.2% 0.067 19.8)
-
Step 800
800
#6B4242
oklch(42.7% 0.057 19.7)
-
Step 900
900 (this color)
#513333
oklch(35.7% 0.044 19.4)
-
Step 950
950
#332121
oklch(27% 0.028 19.1)
#513333 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) | #393733 | 0.046 |
| Deuteranopia (no green cones) | #403D33 | 0.042 |
| Tritanopia (no blue cones) | #573033 | 0.014 |
| Achromatopsia (no color) | #3B3B3B | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513333
#513333
oklch(35.7% 0.044 19.4)
- #1D4345
#1D4345
oklch(35.6% 0.043 200)
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 #513333, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.052
- Purple Brown #673A3F ΔE 0.053
- Onyx #343A40 ΔE 0.055
- Gunmetal #293241 ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.081
- Chestnut #742802 ΔE 0.082
- Reddy Brown #6E1005 ΔE 0.087
- Dark Blue Grey #1F3B4D ΔE 0.087
Use #513333 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.