#583A71
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.095 307.9), rgb(88, 58, 113).
Aa
White text reads best on this color (9.29:1).
About this color
#583A71 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.095 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.051 away. White text reads best on it, at 9.29:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.29:1 |
Values
| HEX | #583A71 |
| RGB | rgb(88, 58, 113) |
| HSL | hsl(273, 32%, 34%) |
| OKLCH | oklch(40.8% 0.095 307.9) |
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 #583A71 | 9.29:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #583A71 | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #583A71 text on white | 9.29:1 | AAA | Lc 91.3 | Preferred for body text |
| #583A71 text on black | 2.25:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DFD4E9
oklch(88.5% 0.031 309.1)
-
Step 300
300
#CAB8DD
oklch(81% 0.055 307.1)
-
Step 400
400
#B092CC
oklch(70.8% 0.089 307.8)
-
Step 500
500
#9C76BE
oklch(63.1% 0.113 307.7)
-
Step 600
600
#875DAA
oklch(55.5% 0.123 308)
-
Step 700
700
#734D92
oklch(49.2% 0.114 308.2)
-
Step 800
800 (this color)
#583A71
oklch(40.8% 0.095 307.9)
-
Step 900
900
#4C3660
oklch(37.7% 0.074 307.3)
-
Step 950
950
#2D2038
oklch(27.1% 0.047 308.4)
#583A71 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) | #2C4673 | 0.073 |
| Deuteranopia (no green cones) | #344770 | 0.066 |
| Tritanopia (no blue cones) | #554350 | 0.068 |
| Achromatopsia (no color) | #474747 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583A71
#583A71
oklch(40.8% 0.095 307.9)
- #3B5311
#3B5311
oklch(40.8% 0.095 127.8)
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 #583A71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Blueberry #464196 ΔE 0.068
- Twilight #4E518B ΔE 0.069
- Dusk #4E5481 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.074
- Dusty Grape #545775 ΔE 0.081
- Purple Brown #673A3F ΔE 0.090
- Grape Purple #5D1451 ΔE 0.091
Use #583A71 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.