#513604
Closest named color: Dark Olive (#373E02). oklch(35.6% 0.072 76.4), rgb(81, 54, 4).
Aa
White text reads best on this color (11.17:1).
About this color
#513604 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.072 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.053 away. White text reads best on it, at 11.17:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.87:1 |
| White text | 11.17:1 |
Values
| HEX | #513604 |
| RGB | rgb(81, 54, 4) |
| HSL | hsl(39, 91%, 17%) |
| OKLCH | oklch(35.6% 0.072 76.4) |
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 #513604 | 11.17:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #513604 | 1.87:1 | Fails | Lc 8.3 | Not readable |
| #513604 text on white | 11.17:1 | AAA | Lc 95.6 | Preferred for body text |
| #513604 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DF
oklch(93.7% 0.015 77.1)
-
Step 200
200
#E5D7C4
oklch(88.5% 0.03 75.7)
-
Step 300
300
#D5BD9A
oklch(81% 0.054 77.2)
-
Step 400
400
#BF9A62
oklch(70.8% 0.086 77)
-
Step 500
500
#AF8032
oklch(63.2% 0.11 76.8)
-
Step 600
600
#996800
oklch(55.5% 0.116 76.4)
-
Step 700
700
#815700
oklch(49% 0.103 76.4)
-
Step 800
800
#6A4700
oklch(42.6% 0.089 76.7)
-
Step 900
900 (this color)
#513604
oklch(35.6% 0.072 76.4)
-
Step 950
950
#33230A
oklch(27% 0.045 75.7)
#513604 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) | #403700 | 0.034 |
| Deuteranopia (no green cones) | #463E06 | 0.030 |
| Tritanopia (no blue cones) | #592F2D | 0.060 |
| Achromatopsia (no color) | #3B3B3B | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513604
#513604
oklch(35.6% 0.072 76.4)
- #223D61
#223D61
oklch(35.7% 0.071 256.1)
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 #513604, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.053
- Mud Brown #60460F ΔE 0.057
- Pakistan Green #283618 ΔE 0.073
- Green Brown #544E03 ΔE 0.073
- Chestnut #742802 ΔE 0.076
- Charcoal Grey #3C4142 ΔE 0.078
- Onyx #343A40 ΔE 0.086
- Purple Brown #673A3F ΔE 0.087
Use #513604 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.