#591F00
Closest named color: Reddy Brown (#6E1005). oklch(32.4% 0.094 44), rgb(89, 31, 0).
Aa
White text reads best on this color (12.95:1).
About this color
#591F00 is a dark, moderately saturated brown. In OKLCH its lightness is 32%, its chroma 0.094 and its hue 44°. 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 12.95:1.
| Hue family | Browns |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.094) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.62:1 |
| White text | 12.95:1 |
Values
| HEX | #591F00 |
| RGB | rgb(89, 31, 0) |
| HSL | hsl(21, 100%, 17%) |
| OKLCH | oklch(32.4% 0.094 44) |
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 #591F00 | 12.95:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #591F00 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #591F00 text on white | 12.95:1 | AAA | Lc 98.5 | Preferred for body text |
| #591F00 text on black | 1.62:1 | 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 900.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F1D2C5
oklch(88.6% 0.039 44.1)
-
Step 300
300
#E9B39C
oklch(81% 0.071 44.2)
-
Step 400
400
#DB8965
oklch(70.8% 0.112 44.2)
-
Step 500
500
#CF6838
oklch(63.1% 0.144 44)
-
Step 600
600
#BB4C0B
oklch(55.6% 0.158 43.8)
-
Step 700
700
#9F3E00
oklch(49.1% 0.142 44.2)
-
Step 800
800
#823305
oklch(42.7% 0.12 44.1)
-
Step 900
900 (this color)
#591F00
oklch(32.4% 0.094 44)
-
Step 950
950
#3E1B0C
oklch(27% 0.06 42.8)
#591F00 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) | #302900 | 0.089 |
| Deuteranopia (no green cones) | #3E3600 | 0.080 |
| Tritanopia (no blue cones) | #630F19 | 0.047 |
| Achromatopsia (no color) | #313131 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #591F00
#591F00
oklch(32.4% 0.094 44)
- #003A4B
#003A4B
oklch(32.4% 0.061 224.5)
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 #591F00, 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 0.059
- Claret #680018 ΔE 0.061
- Chestnut #742802 ΔE 0.066
- Blood #770001 ΔE 0.069
- Mahogany #4A0100 ΔE 0.071
- Burgundy #610023 ΔE 0.072
- Dark Brown #341C02 ΔE 0.085
Use #591F00 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.