#583D77
Closest named color: Dark Slate Blue (#483D8B). oklch(41.7% 0.098 304), rgb(88, 61, 119).
Aa
White text reads best on this color (8.94:1).
About this color
#583D77 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.098 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.044 away. White text reads best on it, at 8.94:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #583D77 |
| RGB | rgb(88, 61, 119) |
| HSL | hsl(268, 32%, 35%) |
| OKLCH | oklch(41.7% 0.098 304) |
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 #583D77 | 8.94:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #583D77 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #583D77 text on white | 8.94:1 | AAA | Lc 90.3 | Preferred for body text |
| #583D77 text on black | 2.34:1 | Fails | Lc -11.9 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DDD4EB
oklch(88.4% 0.033 303.4)
-
Step 300
300
#C8B8DF
oklch(80.9% 0.057 303.8)
-
Step 400
400
#AD92CF
oklch(70.6% 0.092 304.4)
-
Step 500
500
#9977C3
oklch(63.2% 0.116 303.8)
-
Step 600
600
#845EAF
oklch(55.6% 0.127 304.2)
-
Step 700
700
#6F4D96
oklch(49% 0.118 303.9)
-
Step 800
800 (this color)
#583D77
oklch(41.7% 0.098 304)
-
Step 900
900
#4A3662
oklch(37.5% 0.077 303.9)
-
Step 950
950
#2C203A
oklch(27% 0.049 304.5)
#583D77 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) | #2D4979 | 0.070 |
| Deuteranopia (no green cones) | #344976 | 0.063 |
| Tritanopia (no blue cones) | #534754 | 0.073 |
| Achromatopsia (no color) | #494949 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583D77
#583D77
oklch(41.7% 0.098 304)
- #41550A
#41550A
oklch(41.8% 0.098 124.4)
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 #583D77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.044
- Twilight #4E518B ΔE 0.059
- Blueberry #464196 ΔE 0.059
- Dusk #4E5481 ΔE 0.063
- Rebecca Purple #663399 ΔE 0.067
- Dusty Grape #545775 ΔE 0.075
- YInMn Blue #415A77 ΔE 0.087
- Dusk Blue #26538D ΔE 0.088
Use #583D77 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.