#5F3978
Closest named color: Dark Slate Blue (#483D8B). oklch(41.9% 0.109 310.4), rgb(95, 57, 120).
Aa
White text reads best on this color (8.96:1).
About this color
#5F3978 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.109 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 8.96:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #5F3978 |
| RGB | rgb(95, 57, 120) |
| HSL | hsl(276, 36%, 35%) |
| OKLCH | oklch(41.9% 0.109 310.4) |
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 #5F3978 | 8.96:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #5F3978 | 2.34:1 | Fails | Lc 13.7 | Not readable |
| #5F3978 text on white | 8.96:1 | AAA | Lc 90.3 | Preferred for body text |
| #5F3978 text on black | 2.34:1 | Fails | Lc -12.0 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE7F3
oklch(93.7% 0.018 311.6)
-
Step 200
200
#E0D3EB
oklch(88.5% 0.035 309.7)
-
Step 300
300
#CDB6E0
oklch(80.9% 0.063 309.6)
-
Step 400
400
#B48FD0
oklch(70.8% 0.101 309.9)
-
Step 500
500
#A271C3
oklch(63.1% 0.13 310.6)
-
Step 600
600
#8D58B0
oklch(55.6% 0.141 310.4)
-
Step 700
700
#784897
oklch(49.2% 0.131 310.5)
-
Step 800
800 (this color)
#5F3978
oklch(41.9% 0.109 310.4)
-
Step 900
900
#4F3363
oklch(37.6% 0.085 309.7)
-
Step 950
950
#2F1E3A
oklch(27% 0.055 311.1)
#5F3978 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) | #29487A | 0.089 |
| Deuteranopia (no green cones) | #344A76 | 0.080 |
| Tritanopia (no blue cones) | #5C4353 | 0.075 |
| Achromatopsia (no color) | #494949 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F3978
#5F3978
oklch(41.9% 0.109 310.4)
- #385808
#385808
oklch(42% 0.109 130.4)
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 #5F3978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Rebecca Purple #663399 ΔE 0.058
- Blueberry #464196 ΔE 0.066
- Twilight #4E518B ΔE 0.069
- Dusk #4E5481 ΔE 0.075
- Dusty Grape #545775 ΔE 0.085
- Light Eggplant #894585 ΔE 0.091
- Brownish Purple #76424E ΔE 0.094
Use #5F3978 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.