#583F39
Closest named color: Purple Brown (#673A3F). oklch(39.4% 0.037 33.9), rgb(88, 63, 57).
Aa
White text reads best on this color (9.61:1).
About this color
#583F39 is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.037 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.034 away. White text reads best on it, at 9.61:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.18:1 |
| White text | 9.61:1 |
Values
| HEX | #583F39 |
| RGB | rgb(88, 63, 57) |
| HSL | hsl(12, 21%, 28%) |
| OKLCH | oklch(39.4% 0.037 33.9) |
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 #583F39 | 9.61:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #583F39 | 2.18:1 | Fails | Lc 11.7 | Not readable |
| #583F39 text on white | 9.61:1 | AAA | Lc 92.2 | Preferred for body text |
| #583F39 text on black | 2.18:1 | Fails | Lc -10.2 | 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
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EFE8E6
oklch(93.6% 0.008 36.6)
-
Step 200
200
#E3D6D3
oklch(88.6% 0.015 33.1)
-
Step 300
300
#D2BBB5
oklch(81% 0.028 35)
-
Step 400
400
#BA978F
oklch(70.6% 0.044 33.1)
-
Step 500
500
#A97E73
oklch(63.2% 0.056 34.8)
-
Step 600
600
#94665C
oklch(55.6% 0.062 32.7)
-
Step 700
700
#7E554B
oklch(49.1% 0.057 34.3)
-
Step 800
800
#66463E
oklch(42.7% 0.046 34.6)
-
Step 900
900 (this color)
#583F39
oklch(39.4% 0.037 33.9)
-
Step 950
950
#31221F
oklch(26.9% 0.024 31.5)
#583F39 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) | #454239 | 0.035 |
| Deuteranopia (no green cones) | #4A4739 | 0.034 |
| Tritanopia (no blue cones) | #5E3C3D | 0.017 |
| Achromatopsia (no color) | #454545 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583F39
#583F39
oklch(39.4% 0.037 33.9)
- #2E4B52
#2E4B52
oklch(39.3% 0.037 214.7)
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 #583F39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.049
- Mud Brown #60460F ΔE 0.062
- Brownish Purple #76424E ΔE 0.068
- Onyx #343A40 ΔE 0.068
- Dark Slate Gray #2F4F4F ΔE 0.074
- Chestnut #742802 ΔE 0.080
- Charcoal #264653 ΔE 0.082
Use #583F39 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.