#51490B
Closest named color: Green Brown (#544E03). oklch(40.1% 0.078 101.5), rgb(81, 73, 11).
Aa
White text reads best on this color (9.09:1).
About this color
#51490B is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.078 and its hue 101°. Its hue sits on the warm side of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.018 away. White text reads best on it, at 9.09:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.30:1 |
| White text | 9.09:1 |
Values
| HEX | #51490B |
| RGB | rgb(81, 73, 11) |
| HSL | hsl(53, 76%, 18%) |
| OKLCH | oklch(40.1% 0.078 101.5) |
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 #51490B | 9.09:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #51490B | 2.30:1 | Fails | Lc 13.1 | Not readable |
| #51490B text on white | 9.09:1 | AAA | Lc 90.8 | Preferred for body text |
| #51490B text on black | 2.30:1 | Fails | Lc -11.5 | 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
#F6F6F0
oklch(97.1% 0.008 106.5)
-
Step 100
100
#ECEADE
oklch(93.5% 0.016 99)
-
Step 200
200
#DDDAC2
oklch(88.4% 0.032 101.2)
-
Step 300
300
#C8C297
oklch(80.8% 0.058 100.9)
-
Step 400
400
#ADA35B
oklch(70.8% 0.094 101.5)
-
Step 500
500
#998B24
oklch(63.1% 0.119 101.2)
-
Step 600
600
#827500
oklch(55.7% 0.116 101.7)
-
Step 700
700
#6D6200
oklch(49.1% 0.103 101.8)
-
Step 800
800
#595000
oklch(42.7% 0.089 102)
-
Step 900
900 (this color)
#51490B
oklch(40.1% 0.078 101.5)
-
Step 950
950
#2C2706
oklch(27.1% 0.049 100.6)
#51490B 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) | #514700 | 0.007 |
| Deuteranopia (no green cones) | #534A10 | 0.006 |
| Tritanopia (no blue cones) | #58433E | 0.072 |
| Achromatopsia (no color) | #484848 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51490B
#51490B
oklch(40.1% 0.078 101.5)
- #414271
#414271
oklch(40.1% 0.078 281.3)
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 #51490B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.018
- Mud Brown #60460F ΔE 0.029
- Olive Brown #645403 ΔE 0.050
- Navy Green #35530A ΔE 0.051
- Dark Olive #373E02 ΔE 0.060
- Army Green #4B5D16 ΔE 0.060
- Pine #2B5D34 ΔE 0.072
- Camouflage Green #4B6113 ΔE 0.073
Use #51490B 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.