#51491A
Closest named color: Green Brown (#544E03). oklch(40.3% 0.066 99.7), rgb(81, 73, 26).
Aa
White text reads best on this color (9.06:1).
About this color
#51491A is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.066 and its hue 100°. Its hue sits on the warm side of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.025 away. White text reads best on it, at 9.06:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.066) |
| Temperature | warm |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #51491A |
| RGB | rgb(81, 73, 26) |
| HSL | hsl(51, 51%, 21%) |
| OKLCH | oklch(40.3% 0.066 99.7) |
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 #51491A | 9.06:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #51491A | 2.31:1 | Fails | Lc 13.2 | Not readable |
| #51491A text on white | 9.06:1 | AAA | Lc 90.8 | Preferred for body text |
| #51491A text on black | 2.31:1 | 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 800.
-
Step 50
50
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DCDACA
oklch(88.6% 0.022 101)
-
Step 300
300
#C6C2A5
oklch(81% 0.04 100.8)
-
Step 400
400
#A9A275
oklch(70.7% 0.062 100.3)
-
Step 500
500
#958B50
oklch(63.2% 0.08 99.9)
-
Step 600
600
#7F7434
oklch(55.5% 0.086 99.7)
-
Step 700
700
#6C6126
oklch(49% 0.08 98.8)
-
Step 800
800 (this color)
#51491A
oklch(40.3% 0.066 99.7)
-
Step 900
900
#484220
oklch(37.6% 0.052 99.5)
-
Step 950
950
#2A2713
oklch(27% 0.034 100.9)
#51491A 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) | #504715 | 0.007 |
| Deuteranopia (no green cones) | #524A1C | 0.004 |
| Tritanopia (no blue cones) | #57443F | 0.060 |
| Achromatopsia (no color) | #494949 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51491A
#51491A
oklch(40.3% 0.066 99.7)
- #41446C
#41446C
oklch(40.2% 0.067 279.6)
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 #51491A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.025
- Mud Brown #60460F ΔE 0.027
- Olive Brown #645403 ΔE 0.052
- Navy Green #35530A ΔE 0.057
- Dark Olive #373E02 ΔE 0.062
- Army Green #4B5D16 ΔE 0.063
- Pine #2B5D34 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.076
Use #51491A 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.