#581A01
Closest named color: Reddy Brown (#6E1005). oklch(31.5% 0.097 39.9), rgb(88, 26, 1).
Aa
White text reads best on this color (13.43:1).
About this color
#581A01 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.097 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 13.43:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.56:1 |
| White text | 13.43:1 |
Values
| HEX | #581A01 |
| RGB | rgb(88, 26, 1) |
| HSL | hsl(17, 98%, 17%) |
| OKLCH | oklch(31.5% 0.097 39.9) |
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 #581A01 | 13.43:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #581A01 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #581A01 text on white | 13.43:1 | AAA | Lc 99.1 | Preferred for body text |
| #581A01 text on black | 1.56:1 | 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
#FFE3D9
oklch(93.6% 0.034 40.7)
-
Step 200
200
#FFCCBA
oklch(88.5% 0.063 40.3)
-
Step 300
300
#FFA789
oklch(80.8% 0.113 39.6)
-
Step 400
400
#FC6F3B
oklch(70.6% 0.185 39.7)
-
Step 500
500
#E75000
oklch(63.2% 0.199 39.9)
-
Step 600
600
#C34200
oklch(55.6% 0.175 39.8)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#722300
oklch(37.6% 0.118 39.8)
-
Step 950
950 (this color)
#581A01
oklch(31.5% 0.097 39.9)
#581A01 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) | #2C2600 | 0.097 |
| Deuteranopia (no green cones) | #3C3400 | 0.087 |
| Tritanopia (no blue cones) | #620715 | 0.043 |
| Achromatopsia (no color) | #2F2F2F | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581A01
#581A01
oklch(31.5% 0.097 39.9)
- #003845
#003845
oklch(31.5% 0.057 219)
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 #581A01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.049
- Chocolate Brown #411900 ΔE 0.053
- Claret #680018 ΔE 0.055
- Mahogany #4A0100 ΔE 0.060
- Burgundy #610023 ΔE 0.064
- Blood #770001 ΔE 0.069
- Chestnut #742802 ΔE 0.074
- Deep Brown #410200 ΔE 0.078
Use #581A01 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.