#584C8A
Closest named color: Twilight (#4E518B). oklch(45.8% 0.099 290.8), rgb(88, 76, 138).
Aa
White text reads best on this color (7.45:1).
About this color
#584C8A is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.099 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.019 away. White text reads best on it, at 7.45:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #584C8A |
| RGB | rgb(88, 76, 138) |
| HSL | hsl(252, 29%, 42%) |
| OKLCH | oklch(45.8% 0.099 290.8) |
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 #584C8A | 7.45:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #584C8A | 2.81:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #584C8A text on white | 7.45:1 | AAA | Lc 85.8 | Fine for body text |
| #584C8A text on black | 2.81:1 | Fails | Lc -16.2 | 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
#D9D6ED
oklch(88.5% 0.031 291.7)
-
Step 300
300
#C0BBE4
oklch(81% 0.058 290.6)
-
Step 400
400
#A097D6
oklch(70.8% 0.091 290.4)
-
Step 500
500
#8A7CCB
oklch(63.2% 0.117 290.8)
-
Step 600
600
#7463B8
oklch(55.5% 0.129 290.8)
-
Step 700
700
#62529F
oklch(49.1% 0.12 290.9)
-
Step 800
800 (this color)
#584C8A
oklch(45.8% 0.099 290.8)
-
Step 900
900
#423967
oklch(37.6% 0.077 291.2)
-
Step 950
950
#27223C
oklch(27.1% 0.048 291.7)
#584C8A 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) | #37568C | 0.051 |
| Deuteranopia (no green cones) | #385489 | 0.049 |
| Tritanopia (no blue cones) | #4C5864 | 0.083 |
| Achromatopsia (no color) | #555555 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #584C8A
#584C8A
oklch(45.8% 0.099 290.8)
- #5A5C03
#5A5C03
oklch(45.8% 0.099 111.2)
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 #584C8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.019
- Dusk #4E5481 ΔE 0.033
- Blueberry #464196 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.051
- Dusty Grape #545775 ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.065
Use #584C8A 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.