#513503
Closest named color: Dark Olive (#373E02). oklch(35.3% 0.072 75.2), rgb(81, 53, 3).
Aa
White text reads best on this color (11.28:1).
About this color
#513503 is a dark, moderately saturated brown. In OKLCH its lightness is 35%, its chroma 0.072 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.054 away. White text reads best on it, at 11.28:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #513503 |
| RGB | rgb(81, 53, 3) |
| HSL | hsl(38, 93%, 16%) |
| OKLCH | oklch(35.3% 0.072 75.2) |
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 #513503 | 11.28:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #513503 | 1.86:1 | Fails | Lc 8.1 | Not readable |
| #513503 text on white | 11.28:1 | AAA | Lc 95.8 | Preferred for body text |
| #513503 text on black | 1.86:1 | 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
#D6BC9A
oklch(80.9% 0.055 74.3)
-
Step 400
400
#C09961
oklch(70.7% 0.087 75.6)
-
Step 500
500
#B07F31
oklch(63.1% 0.111 75.5)
-
Step 600
600
#9A6800
oklch(55.6% 0.117 75.8)
-
Step 700
700
#825700
oklch(49.1% 0.103 75.7)
-
Step 800
800
#6B4700
oklch(42.8% 0.09 75.9)
-
Step 900
900 (this color)
#513503
oklch(35.3% 0.072 75.2)
-
Step 950
950
#33230A
oklch(27% 0.045 75.7)
#513503 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) | #3F3600 | 0.036 |
| Deuteranopia (no green cones) | #463D05 | 0.030 |
| Tritanopia (no blue cones) | #592E2C | 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°).
- #513503
#513503
oklch(35.3% 0.072 75.2)
- #203C60
#203C60
oklch(35.3% 0.072 255.5)
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 #513503, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.054
- Mud Brown #60460F ΔE 0.060
- Pakistan Green #283618 ΔE 0.073
- Chestnut #742802 ΔE 0.076
- Green Brown #544E03 ΔE 0.076
- Charcoal Grey #3C4142 ΔE 0.079
- Onyx #343A40 ΔE 0.086
- Purple Brown #673A3F ΔE 0.088
Use #513503 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.