#543879
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.108 301.6), rgb(84, 56, 121).
Aa
White text reads best on this color (9.46:1).
About this color
#543879 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.108 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 9.46:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.21:1 |
| White text | 9.46:1 |
Values
| HEX | #543879 |
| RGB | rgb(84, 56, 121) |
| HSL | hsl(266, 37%, 35%) |
| OKLCH | oklch(40.5% 0.108 301.6) |
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 #543879 | 9.46:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #543879 | 2.21:1 | Fails | Lc 12.3 | Not readable |
| #543879 text on white | 9.46:1 | AAA | Lc 91.7 | Preferred for body text |
| #543879 text on black | 2.21:1 | Fails | Lc -10.7 | 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
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DDD4ED
oklch(88.5% 0.035 302)
-
Step 300
300
#C8B8E3
oklch(81% 0.062 302)
-
Step 400
400
#AC91D6
oklch(70.6% 0.103 301.8)
-
Step 500
500
#9875CA
oklch(63.1% 0.129 301.8)
-
Step 600
600
#835CB7
oklch(55.6% 0.141 301.8)
-
Step 700
700
#6F4B9E
oklch(49.1% 0.132 301.8)
-
Step 800
800 (this color)
#543879
oklch(40.5% 0.108 301.6)
-
Step 900
900
#4A3567
oklch(37.6% 0.086 301.8)
-
Step 950
950
#2B203C
oklch(27.1% 0.052 301.1)
#543879 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) | #22457B | 0.077 |
| Deuteranopia (no green cones) | #2A4677 | 0.071 |
| Tritanopia (no blue cones) | #4D4453 | 0.081 |
| Achromatopsia (no color) | #464646 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543879
#543879
oklch(40.5% 0.108 301.6)
- #415000
#415000
oklch(40.4% 0.097 121.2)
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 #543879, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.055
- Rebecca Purple #663399 ΔE 0.063
- Twilight #4E518B ΔE 0.069
- Dusk #4E5481 ΔE 0.076
- Cobalt #1E488F ΔE 0.085
- Dusty Grape #545775 ΔE 0.090
- Dusk Blue #26538D ΔE 0.092
Use #543879 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.