#583B3A
Closest named color: Purple Brown (#673A3F). oklch(38.5% 0.041 21.4), rgb(88, 59, 58).
Aa
White text reads best on this color (9.99:1).
About this color
#583B3A is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.041 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.031 away. White text reads best on it, at 9.99:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.10:1 |
| White text | 9.99:1 |
Values
| HEX | #583B3A |
| RGB | rgb(88, 59, 58) |
| HSL | hsl(2, 21%, 29%) |
| OKLCH | oklch(38.5% 0.041 21.4) |
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 #583B3A | 9.99:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #583B3A | 2.10:1 | Fails | Lc 10.8 | Not readable |
| #583B3A text on white | 9.99:1 | AAA | Lc 93.1 | Preferred for body text |
| #583B3A text on black | 2.10:1 | Fails | Lc -9.4 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E8E7
oklch(93.7% 0.009 26)
-
Step 200
200
#E4D5D4
oklch(88.5% 0.017 22.1)
-
Step 300
300
#D4B9B8
oklch(80.9% 0.031 20.3)
-
Step 400
400
#BE9593
oklch(70.7% 0.05 21.6)
-
Step 500
500
#AD7A79
oklch(63.1% 0.064 20.3)
-
Step 600
600
#986361
oklch(55.6% 0.069 21.9)
-
Step 700
700
#815251
oklch(49.1% 0.063 20.9)
-
Step 800
800
#694342
oklch(42.6% 0.053 21.2)
-
Step 900
900 (this color)
#583B3A
oklch(38.5% 0.041 21.4)
-
Step 950
950
#322121
oklch(26.9% 0.026 18.9)
#583B3A 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) | #413F3A | 0.043 |
| Deuteranopia (no green cones) | #47453A | 0.042 |
| Tritanopia (no blue cones) | #5E383B | 0.014 |
| Achromatopsia (no color) | #424242 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583B3A
#583B3A
oklch(38.5% 0.041 21.4)
- #274A4D
#274A4D
oklch(38.4% 0.041 202.7)
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 #583B3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.050
- Onyx #343A40 ΔE 0.065
- Brownish Purple #76424E ΔE 0.070
- Mud Brown #60460F ΔE 0.072
- Chestnut #742802 ΔE 0.078
- Dark Slate Gray #2F4F4F ΔE 0.081
- Charcoal #264653 ΔE 0.084
Use #583B3A 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.