#513B2F
Closest named color: Charcoal Grey (#3C4142). oklch(37.3% 0.037 49.8), rgb(81, 59, 47).
Aa
White text reads best on this color (10.41:1).
About this color
#513B2F is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.037 and its hue 50°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.044 away. White text reads best on it, at 10.41:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.01:1 |
| White text | 10.41:1 |
Values
| HEX | #513B2F |
| RGB | rgb(81, 59, 47) |
| HSL | hsl(21, 27%, 25%) |
| OKLCH | oklch(37.3% 0.037 49.8) |
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 #513B2F | 10.41:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #513B2F | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #513B2F text on white | 10.41:1 | AAA | Lc 94.1 | Preferred for body text |
| #513B2F text on black | 2.01:1 | Fails | Lc -8.4 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E2D6D0
oklch(88.4% 0.016 48.5)
-
Step 300
300
#D0BCB1
oklch(80.9% 0.028 50.8)
-
Step 400
400
#B89988
oklch(70.6% 0.044 50.4)
-
Step 500
500
#A6806B
oklch(63.1% 0.056 50.3)
-
Step 600
600
#916953
oklch(55.6% 0.061 49.9)
-
Step 700
700
#7C5743
oklch(49.1% 0.058 49.3)
-
Step 800
800
#654737
oklch(42.7% 0.049 49.1)
-
Step 900
900 (this color)
#513B2F
oklch(37.3% 0.037 49.8)
-
Step 950
950
#30231C
oklch(26.9% 0.024 49.6)
#513B2F 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) | #413D2E | 0.030 |
| Deuteranopia (no green cones) | #46422F | 0.028 |
| Tritanopia (no blue cones) | #573738 | 0.025 |
| Achromatopsia (no color) | #404040 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513B2F
#513B2F
oklch(37.3% 0.037 49.8)
- #2B4451
#2B4451
oklch(37.2% 0.038 231.8)
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 #513B2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.044
- Purple Brown #673A3F ΔE 0.052
- Onyx #343A40 ΔE 0.057
- Mud Brown #60460F ΔE 0.063
- Dark Olive #373E02 ΔE 0.077
- Dark Slate Gray #2F4F4F ΔE 0.077
- Chestnut #742802 ΔE 0.080
- Charcoal #264653 ΔE 0.081
Use #513B2F 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.