#583B18
Closest named color: Mud Brown (#60460F). oklch(37.8% 0.064 68.7), rgb(88, 59, 24).
Aa
White text reads best on this color (10.22:1).
About this color
#583B18 is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.064 and its hue 69°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.040 away. White text reads best on it, at 10.22:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #583B18 |
| RGB | rgb(88, 59, 24) |
| HSL | hsl(33, 57%, 22%) |
| OKLCH | oklch(37.8% 0.064 68.7) |
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 #583B18 | 10.22:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #583B18 | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #583B18 text on white | 10.22:1 | AAA | Lc 93.6 | Preferred for body text |
| #583B18 text on black | 2.05:1 | Fails | Lc -8.9 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E8E0
oklch(93.5% 0.014 67.7)
-
Step 200
200
#E5D6C7
oklch(88.4% 0.026 67.5)
-
Step 300
300
#D6BCA0
oklch(81% 0.048 69.1)
-
Step 400
400
#C1986C
oklch(70.7% 0.077 68)
-
Step 500
500
#B07E43
oklch(63.1% 0.098 68.9)
-
Step 600
600
#9C6621
oklch(55.6% 0.107 68.2)
-
Step 700
700
#855512
oklch(49.2% 0.1 69)
-
Step 800
800
#6C4513
oklch(42.6% 0.083 68.1)
-
Step 900
900 (this color)
#583B18
oklch(37.8% 0.064 68.7)
-
Step 950
950
#33230F
oklch(27.1% 0.04 70.8)
#583B18 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) | #453D14 | 0.037 |
| Deuteranopia (no green cones) | #4C4419 | 0.034 |
| Tritanopia (no blue cones) | #603433 | 0.051 |
| Achromatopsia (no color) | #414141 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583B18
#583B18
oklch(37.8% 0.064 68.7)
- #254462
#254462
oklch(37.7% 0.064 249.1)
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 #583B18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.040
- Green Brown #544E03 ΔE 0.064
- Purple Brown #673A3F ΔE 0.065
- Chestnut #742802 ΔE 0.066
- Dark Olive #373E02 ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.070
- Olive Brown #645403 ΔE 0.084
- Onyx #343A40 ΔE 0.084
Use #583B18 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.