#511907
Closest named color: Chocolate Brown (#411900). oklch(30% 0.088 37.5), rgb(81, 25, 7).
Aa
White text reads best on this color (14.07:1).
About this color
#511907 is a dark, moderately saturated red. In OKLCH its lightness is 30%, its chroma 0.088 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.039 away. White text reads best on it, at 14.07:1.
| Hue family | Reds |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.49:1 |
| White text | 14.07:1 |
Values
| HEX | #511907 |
| RGB | rgb(81, 25, 7) |
| HSL | hsl(15, 84%, 17%) |
| OKLCH | oklch(30% 0.088 37.5) |
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 #511907 | 14.07:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #511907 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #511907 text on white | 14.07:1 | AAA | Lc 100.1 | Preferred for body text |
| #511907 text on black | 1.49:1 | 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 950.
-
Step 50
50
#FFF2EF
oklch(97.1% 0.015 33.1)
-
Step 100
100
#FDE3DC
oklch(93.5% 0.03 35.5)
-
Step 200
200
#FDCDBE
oklch(88.6% 0.058 38.1)
-
Step 300
300
#FCA990
oklch(81% 0.105 37.5)
-
Step 400
400
#F6754E
oklch(70.8% 0.168 37.5)
-
Step 500
500
#EC4900
oklch(63.2% 0.209 37.6)
-
Step 600
600
#C73C00
oklch(55.6% 0.184 37.5)
-
Step 700
700
#A83100
oklch(49% 0.162 37.4)
-
Step 800
800
#8B2700
oklch(42.7% 0.141 37.5)
-
Step 900
900
#751F00
oklch(37.6% 0.125 37.3)
-
Step 950
950 (this color)
#511907
oklch(30% 0.088 37.5)
#511907 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) | #292405 | 0.089 |
| Deuteranopia (no green cones) | #373005 | 0.081 |
| Tritanopia (no blue cones) | #5A0A15 | 0.037 |
| Achromatopsia (no color) | #2B2B2B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511907
#511907
oklch(30% 0.088 37.5)
- #003440
#003440
oklch(30% 0.054 218.5)
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 #511907, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.039
- Mahogany #4A0100 ΔE 0.047
- Claret #680018 ΔE 0.062
- Deep Brown #410200 ΔE 0.064
- Reddy Brown #6E1005 ΔE 0.064
- Burgundy #610023 ΔE 0.065
- Dark Brown #341C02 ΔE 0.066
- Dark Maroon #3C0008 ΔE 0.080
Use #511907 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.