#581F09
Closest named color: Reddy Brown (#6E1005). oklch(32.3% 0.09 39.7), rgb(88, 31, 9).
Aa
White text reads best on this color (13.00:1).
About this color
#581F09 is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.090 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.049 away. White text reads best on it, at 13.00:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.61:1 |
| White text | 13.00:1 |
Values
| HEX | #581F09 |
| RGB | rgb(88, 31, 9) |
| HSL | hsl(17, 81%, 19%) |
| OKLCH | oklch(32.3% 0.09 39.7) |
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 #581F09 | 13.00:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #581F09 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #581F09 text on white | 13.00:1 | AAA | Lc 98.6 | Preferred for body text |
| #581F09 text on black | 1.61:1 | 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
#FFF2EE
oklch(97% 0.015 37.9)
-
Step 100
100
#FDE4DB
oklch(93.7% 0.03 40.9)
-
Step 200
200
#FDCDBC
oklch(88.6% 0.059 40.4)
-
Step 300
300
#FCA98C
oklch(80.9% 0.106 40)
-
Step 400
400
#F67546
oklch(70.7% 0.17 39.9)
-
Step 500
500
#E74F00
oklch(63% 0.2 39.6)
-
Step 600
600
#C34200
oklch(55.6% 0.175 39.8)
-
Step 700
700
#A53600
oklch(49% 0.155 39.6)
-
Step 800
800
#882B00
oklch(42.6% 0.135 39.6)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950 (this color)
#581F09
oklch(32.3% 0.09 39.7)
#581F09 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) | #2F2906 | 0.089 |
| Deuteranopia (no green cones) | #3D3607 | 0.081 |
| Tritanopia (no blue cones) | #62111B | 0.042 |
| Achromatopsia (no color) | #313131 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581F09
#581F09
oklch(32.3% 0.09 39.7)
- #003A48
#003A48
oklch(32.2% 0.059 220)
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 #581F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.049
- Claret #680018 ΔE 0.057
- Chocolate Brown #411900 ΔE 0.058
- Burgundy #610023 ΔE 0.066
- Chestnut #742802 ΔE 0.068
- Mahogany #4A0100 ΔE 0.068
- Blood #770001 ΔE 0.070
- Dark Brown #341C02 ΔE 0.084
Use #581F09 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.