#583F3B
Closest named color: Purple Brown (#673A3F). oklch(39.4% 0.036 29.1), rgb(88, 63, 59).
Aa
White text reads best on this color (9.59:1).
About this color
#583F3B is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.036 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.033 away. White text reads best on it, at 9.59:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.18:1 |
| White text | 9.59:1 |
Values
| HEX | #583F3B |
| RGB | rgb(88, 63, 59) |
| HSL | hsl(8, 20%, 29%) |
| OKLCH | oklch(39.4% 0.036 29.1) |
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 #583F3B | 9.59:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #583F3B | 2.18:1 | Fails | Lc 11.8 | Not readable |
| #583F3B text on white | 9.59:1 | AAA | Lc 92.2 | Preferred for body text |
| #583F3B 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E3D6D3
oklch(88.6% 0.015 33.1)
-
Step 300
300
#D2BBB7
oklch(81% 0.027 29.5)
-
Step 400
400
#BA9791
oklch(70.7% 0.043 29.5)
-
Step 500
500
#A87D76
oklch(63% 0.055 29.2)
-
Step 600
600
#93665F
oklch(55.5% 0.06 29)
-
Step 700
700
#7D554E
oklch(49.1% 0.055 30.2)
-
Step 800
800
#664540
oklch(42.6% 0.047 28.7)
-
Step 900
900 (this color)
#583F3B
oklch(39.4% 0.036 29.1)
-
Step 950
950
#312220
oklch(26.9% 0.024 27.3)
#583F3B 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) | #44423B | 0.036 |
| Deuteranopia (no green cones) | #4A473B | 0.034 |
| Tritanopia (no blue cones) | #5E3C3E | 0.016 |
| Achromatopsia (no color) | #454545 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583F3B
#583F3B
oklch(39.4% 0.036 29.1)
- #2E4C51
#2E4C51
oklch(39.5% 0.037 209.1)
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 #583F3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.033
- Charcoal Grey #3C4142 ΔE 0.049
- Mud Brown #60460F ΔE 0.065
- Brownish Purple #76424E ΔE 0.067
- Onyx #343A40 ΔE 0.068
- Dark Slate Gray #2F4F4F ΔE 0.074
- Charcoal #264653 ΔE 0.081
- Chestnut #742802 ΔE 0.081
Use #583F3B 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.