#591D00
Closest named color: Reddy Brown (#6E1005). oklch(32.1% 0.096 42.4), rgb(89, 29, 0).
Aa
White text reads best on this color (13.12:1).
About this color
#591D00 is a dark, moderately saturated brown. In OKLCH its lightness is 32%, its chroma 0.096 and its hue 42°. 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 13.12:1.
| Hue family | Browns |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.096) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.60:1 |
| White text | 13.12:1 |
Values
| HEX | #591D00 |
| RGB | rgb(89, 29, 0) |
| HSL | hsl(20, 100%, 17%) |
| OKLCH | oklch(32.1% 0.096 42.4) |
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 #591D00 | 13.12:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #591D00 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #591D00 text on white | 13.12:1 | AAA | Lc 98.7 | Preferred for body text |
| #591D00 text on black | 1.60:1 | 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
#FEE3D9
oklch(93.5% 0.033 41.5)
-
Step 200
200
#FFCCB9
oklch(88.5% 0.064 41.4)
-
Step 300
300
#FFA885
oklch(80.9% 0.114 42.6)
-
Step 400
400
#FA7235
oklch(70.7% 0.182 42.4)
-
Step 500
500
#E25600
oklch(63.1% 0.189 42.3)
-
Step 600
600
#BF4800
oklch(55.7% 0.166 42.5)
-
Step 700
700
#A13B00
oklch(49% 0.147 42.3)
-
Step 800
800
#853000
oklch(42.7% 0.127 42.7)
-
Step 900
900
#702700
oklch(37.7% 0.113 42.6)
-
Step 950
950 (this color)
#591D00
oklch(32.1% 0.096 42.4)
#591D00 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) | #2F2800 | 0.092 |
| Deuteranopia (no green cones) | #3D3600 | 0.085 |
| Tritanopia (no blue cones) | #630C18 | 0.046 |
| Achromatopsia (no color) | #303030 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #591D00
#591D00
oklch(32.1% 0.096 42.4)
- #003949
#003949
oklch(32% 0.06 223.4)
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 #591D00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.048
- Chocolate Brown #411900 ΔE 0.057
- Claret #680018 ΔE 0.058
- Mahogany #4A0100 ΔE 0.067
- Chestnut #742802 ΔE 0.068
- Blood #770001 ΔE 0.068
- Burgundy #610023 ΔE 0.069
- Dark Brown #341C02 ΔE 0.084
Use #591D00 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.