#583A40
Closest named color: Purple Brown (#673A3F). oklch(38.5% 0.043 6.2), rgb(88, 58, 64).
Aa
White text reads best on this color (10.02:1).
About this color
#583A40 is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.043 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.029 away. White text reads best on it, at 10.02:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.09:1 |
| White text | 10.02:1 |
Values
| HEX | #583A40 |
| RGB | rgb(88, 58, 64) |
| HSL | hsl(348, 21%, 29%) |
| OKLCH | oklch(38.5% 0.043 6.2) |
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 #583A40 | 10.02:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #583A40 | 2.09:1 | Fails | Lc 10.7 | Not readable |
| #583A40 text on white | 10.02:1 | AAA | Lc 93.2 | Preferred for body text |
| #583A40 text on black | 2.09:1 | Fails | Lc -9.3 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E4D4D7
oklch(88.4% 0.018 4.6)
-
Step 300
300
#D4B8BD
oklch(80.8% 0.033 5.7)
-
Step 400
400
#BE949B
oklch(70.8% 0.051 7.3)
-
Step 500
500
#AD7983
oklch(63.2% 0.066 6.5)
-
Step 600
600
#98616D
oklch(55.6% 0.073 5.5)
-
Step 700
700
#81505B
oklch(49% 0.067 5.3)
-
Step 800
800
#69424A
oklch(42.7% 0.055 6.3)
-
Step 900
900 (this color)
#583A40
oklch(38.5% 0.043 6.2)
-
Step 950
950
#322124
oklch(27% 0.027 7.3)
#583A40 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) | #3E3F40 | 0.048 |
| Deuteranopia (no green cones) | #46443F | 0.043 |
| Tritanopia (no blue cones) | #5D383C | 0.011 |
| Achromatopsia (no color) | #424242 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583A40
#583A40
oklch(38.5% 0.043 6.2)
- #264B47
#264B47
oklch(38.4% 0.043 186.5)
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 #583A40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.029
- Charcoal Grey #3C4142 ΔE 0.052
- Onyx #343A40 ΔE 0.065
- Brownish Purple #76424E ΔE 0.067
- Charcoal #264653 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.083
- Mud Brown #60460F ΔE 0.083
- Dark Grey Blue #29465B ΔE 0.083
Use #583A40 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.