#5F55A3
Closest named color: Twilight (#4E518B). oklch(49.7% 0.121 287), rgb(95, 85, 163).
Aa
White text reads best on this color (6.33:1).
About this color
#5F55A3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.121 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.048 away. White text reads best on it, at 6.33:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #5F55A3 |
| RGB | rgb(95, 85, 163) |
| HSL | hsl(248, 31%, 49%) |
| OKLCH | oklch(49.7% 0.121 287) |
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 #5F55A3 | 6.33:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #5F55A3 | 3.31:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #5F55A3 text on white | 6.33:1 | AA | Lc 81.4 | Fine for body text |
| #5F55A3 text on black | 3.31:1 | AA large text | Lc -20.5 | 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 700.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EE
oklch(88.4% 0.033 287.6)
-
Step 300
300
#BDBBE5
oklch(80.8% 0.059 287.2)
-
Step 400
400
#9C98D8
oklch(70.7% 0.093 286.6)
-
Step 500
500
#857DCE
oklch(63.1% 0.12 287)
-
Step 600
600
#6F65BB
oklch(55.6% 0.13 286.7)
-
Step 700
700 (this color)
#5F55A3
oklch(49.7% 0.121 287)
-
Step 800
800
#4C4583
oklch(42.8% 0.1 286.5)
-
Step 900
900
#3F3A69
oklch(37.7% 0.079 286.8)
-
Step 950
950
#25223D
oklch(26.9% 0.05 287.7)
#5F55A3 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) | #3762A6 | 0.058 |
| Deuteranopia (no green cones) | #365DA1 | 0.056 |
| Tritanopia (no blue cones) | #4B6574 | 0.103 |
| Achromatopsia (no color) | #606060 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F55A3
#5F55A3
oklch(49.7% 0.121 287)
- #6A6600
#6A6600
oklch(49.8% 0.107 107)
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 #5F55A3, closest first.
No curated palette has a color within ΔE 0.04 of #5F55A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.048
- Dusky Blue #475F94 ΔE 0.051
- Iris #6258C4 ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.060
- Dusk #4E5481 ΔE 0.062
- French Blue #436BAD ΔE 0.065
- Slate Blue #6A5ACD ΔE 0.068
- Blueberry #464196 ΔE 0.071
Use #5F55A3 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.