#584C8B
Closest named color: Twilight (#4E518B). oklch(45.8% 0.101 290.6), rgb(88, 76, 139).
Aa
White text reads best on this color (7.44:1).
About this color
#584C8B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.101 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.020 away. White text reads best on it, at 7.44:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #584C8B |
| RGB | rgb(88, 76, 139) |
| HSL | hsl(251, 29%, 42%) |
| OKLCH | oklch(45.8% 0.101 290.6) |
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 #584C8B | 7.44:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #584C8B | 2.82:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #584C8B text on white | 7.44:1 | AAA | Lc 85.8 | Fine for body text |
| #584C8B text on black | 2.82:1 | Fails | Lc -16.3 | Dividers and decoration only |
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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EE
oklch(88.5% 0.033 289.5)
-
Step 300
300
#C0BBE5
oklch(81% 0.059 290.5)
-
Step 400
400
#A096D7
oklch(70.6% 0.094 290.8)
-
Step 500
500
#8A7BCC
oklch(63% 0.12 291.1)
-
Step 600
600
#7463B9
oklch(55.5% 0.13 290.6)
-
Step 700
700
#6252A0
oklch(49.2% 0.122 290.7)
-
Step 800
800 (this color)
#584C8B
oklch(45.8% 0.101 290.6)
-
Step 900
900
#423968
oklch(37.7% 0.079 290.9)
-
Step 950
950
#26223D
oklch(27% 0.049 289.5)
#584C8B 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) | #37568D | 0.051 |
| Deuteranopia (no green cones) | #385489 | 0.049 |
| Tritanopia (no blue cones) | #4B5865 | 0.083 |
| Achromatopsia (no color) | #555555 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #584C8B
#584C8B
oklch(45.8% 0.101 290.6)
- #5B5C00
#5B5C00
oklch(45.9% 0.1 110.5)
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 #584C8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.020
- Dusk #4E5481 ΔE 0.034
- Blueberry #464196 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.053
- Dusty Grape #545775 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.055
- Dusk Blue #26538D ΔE 0.065
Use #584C8B 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.