#51450D
Closest named color: Mud Brown (#60460F). oklch(39.2% 0.073 96.4), rgb(81, 69, 13).
Aa
White text reads best on this color (9.51:1).
About this color
#51450D is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.073 and its hue 96°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.029 away. White text reads best on it, at 9.51:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.073) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #51450D |
| RGB | rgb(81, 69, 13) |
| HSL | hsl(49, 72%, 18%) |
| OKLCH | oklch(39.2% 0.073 96.4) |
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 #51450D | 9.51:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #51450D | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #51450D text on white | 9.51:1 | AAA | Lc 91.9 | Preferred for body text |
| #51450D text on black | 2.20:1 | Fails | Lc -10.5 | 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
#F7F5F0
oklch(97% 0.007 88.6)
-
Step 100
100
#EDEADE
oklch(93.6% 0.016 95.2)
-
Step 200
200
#DFDAC3
oklch(88.6% 0.031 96.9)
-
Step 300
300
#CBC199
oklch(80.9% 0.055 95.7)
-
Step 400
400
#B0A15F
oklch(70.7% 0.088 96.9)
-
Step 500
500
#9D892C
oklch(63.1% 0.113 96.7)
-
Step 600
600
#877200
oklch(55.5% 0.114 96.2)
-
Step 700
700
#726000
oklch(49.2% 0.101 96.3)
-
Step 800
800
#5D4E00
oklch(42.6% 0.088 96.3)
-
Step 900
900 (this color)
#51450D
oklch(39.2% 0.073 96.4)
-
Step 950
950
#2D2608
oklch(26.9% 0.046 96)
#51450D 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) | #4D4303 | 0.012 |
| Deuteranopia (no green cones) | #504711 | 0.006 |
| Tritanopia (no blue cones) | #583F3A | 0.067 |
| Achromatopsia (no color) | #454545 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51450D
#51450D
oklch(39.2% 0.073 96.4)
- #3B416C
#3B416C
oklch(39.1% 0.073 276.4)
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 #51450D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.029
- Green Brown #544E03 ΔE 0.030
- Dark Olive #373E02 ΔE 0.054
- Olive Brown #645403 ΔE 0.060
- Navy Green #35530A ΔE 0.060
- Army Green #4B5D16 ΔE 0.072
- Charcoal Grey #3C4142 ΔE 0.079
- Pine #2B5D34 ΔE 0.081
Use #51450D 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.