#583A39
Closest named color: Purple Brown (#673A3F). oklch(38.3% 0.043 21.4), rgb(88, 58, 57).
Aa
White text reads best on this color (10.09:1).
About this color
#583A39 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.043 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 10.09:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.07:1 |
| White text | 10.09:1 |
Values
| HEX | #583A39 |
| RGB | rgb(88, 58, 57) |
| HSL | hsl(2, 21%, 28%) |
| OKLCH | oklch(38.3% 0.043 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 #583A39 | 10.09:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #583A39 | 2.07:1 | Fails | Lc 10.6 | Not readable |
| #583A39 text on white | 10.09:1 | AAA | Lc 93.4 | Preferred for body text |
| #583A39 text on black | 2.07:1 | Fails | Lc -9.1 | 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
#F0E7E7
oklch(93.5% 0.01 17.3)
-
Step 200
200
#E5D5D4
oklch(88.6% 0.018 21.8)
-
Step 300
300
#D5B9B7
oklch(80.9% 0.032 22.7)
-
Step 400
400
#BF9493
oklch(70.7% 0.052 20)
-
Step 500
500
#AE7A78
oklch(63.1% 0.066 21.5)
-
Step 600
600
#996261
oklch(55.6% 0.072 20.8)
-
Step 700
700
#825150
oklch(49% 0.066 21)
-
Step 800
800
#6A4342
oklch(42.8% 0.054 21.2)
-
Step 900
900 (this color)
#583A39
oklch(38.3% 0.043 21.4)
-
Step 950
950
#332121
oklch(27% 0.028 19.1)
#583A39 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) | #403E39 | 0.045 |
| Deuteranopia (no green cones) | #474439 | 0.042 |
| Tritanopia (no blue cones) | #5E373A | 0.014 |
| Achromatopsia (no color) | #424242 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583A39
#583A39
oklch(38.3% 0.043 21.4)
- #254A4D
#254A4D
oklch(38.3% 0.043 202.4)
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 #583A39, 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 0.051
- Onyx #343A40 ΔE 0.065
- Brownish Purple #76424E ΔE 0.071
- Mud Brown #60460F ΔE 0.073
- Chestnut #742802 ΔE 0.077
- Dark Slate Gray #2F4F4F ΔE 0.083
- Charcoal #264653 ΔE 0.085
Use #583A39 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.