#581809
Closest named color: Reddy Brown (#6E1005). oklch(31.3% 0.097 34.3), rgb(88, 24, 9).
Aa
White text reads best on this color (13.55:1).
About this color
#581809 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.097 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.048 away. White text reads best on it, at 13.55:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.54:1 |
| White text | 13.55:1 |
Values
| HEX | #581809 |
| RGB | rgb(88, 24, 9) |
| HSL | hsl(11, 81%, 19%) |
| OKLCH | oklch(31.3% 0.097 34.3) |
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 #581809 | 13.55:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #581809 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #581809 text on white | 13.55:1 | AAA | Lc 99.3 | Preferred for body text |
| #581809 text on black | 1.54:1 | 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
#FFE3DC
oklch(93.7% 0.032 34.3)
-
Step 200
200
#FFCBBE
oklch(88.4% 0.062 34.4)
-
Step 300
300
#FFA691
oklch(80.8% 0.11 33.9)
-
Step 400
400
#FE6D4B
oklch(70.8% 0.184 34.6)
-
Step 500
500
#F33B00
oklch(63.1% 0.225 34.3)
-
Step 600
600
#CD3100
oklch(55.6% 0.198 34.4)
-
Step 700
700
#AE2800
oklch(49.2% 0.175 34.4)
-
Step 800
800
#901F00
oklch(42.8% 0.153 34.3)
-
Step 900
900
#791900
oklch(37.8% 0.134 34.5)
-
Step 950
950 (this color)
#581809
oklch(31.3% 0.097 34.3)
#581809 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) | #2B2507 | 0.100 |
| Deuteranopia (no green cones) | #3B3306 | 0.090 |
| Tritanopia (no blue cones) | #620415 | 0.037 |
| Achromatopsia (no color) | #2E2E2E | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581809
#581809
oklch(31.3% 0.097 34.3)
- #003842
#003842
oklch(31.3% 0.055 213.9)
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 #581809, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.048
- Claret #680018 ΔE 0.048
- Chocolate Brown #411900 ΔE 0.055
- Burgundy #610023 ΔE 0.055
- Mahogany #4A0100 ΔE 0.056
- Blood #770001 ΔE 0.068
- Deep Brown #410200 ΔE 0.075
- Chestnut #742802 ΔE 0.077
Use #581809 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.