#5F5EDD
Closest named color: Dark Periwinkle (#665FD1). oklch(55.4% 0.189 278.6), rgb(95, 94, 221).
Aa
White text reads best on this color (5.08:1).
About this color
#5F5EDD is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.189 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.021 away. White text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.13:1 |
| White text | 5.08:1 |
Values
| HEX | #5F5EDD |
| RGB | rgb(95, 94, 221) |
| HSL | hsl(240, 65%, 62%) |
| OKLCH | oklch(55.4% 0.189 278.6) |
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 #5F5EDD | 5.08:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #5F5EDD | 4.13:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #5F5EDD text on white | 5.08:1 | AA | Lc 74.7 | Content text, not long reading |
| #5F5EDD text on black | 4.13:1 | AA large text | Lc -27.0 | 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 600.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D2D7F9
oklch(88.6% 0.047 278.8)
-
Step 300
300
#B4BCF7
oklch(81% 0.084 278.4)
-
Step 400
400
#8E96F4
oklch(70.6% 0.137 278.6)
-
Step 500
500
#7579EF
oklch(63.1% 0.173 278.7)
-
Step 600
600 (this color)
#5F5EDD
oklch(55.4% 0.189 278.6)
-
Step 700
700
#4F4DC1
oklch(49.1% 0.176 278.4)
-
Step 800
800
#41409C
oklch(42.7% 0.146 278.7)
-
Step 900
900
#36387C
oklch(37.8% 0.113 278.3)
-
Step 950
950
#1F2148
oklch(26.9% 0.071 278.2)
#5F5EDD 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) | #0073E1 | 0.077 |
| Deuteranopia (no green cones) | #0069DA | 0.073 |
| Tritanopia (no blue cones) | #117C94 | 0.164 |
| Achromatopsia (no color) | #6E6E6E | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F5EDD
#5F5EDD
oklch(55.4% 0.189 278.6)
- #847300
#847300
oklch(55.5% 0.115 98.9)
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 #5F5EDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.021
- Slate Blue #6A5ACD ΔE 0.030
- Light Indigo #6D5ACF ΔE 0.030
- Warm Blue #4B57DB ΔE 0.034
- Iris #6258C4 ΔE 0.040
- Royal Blue #4169E1 ΔE 0.041
- Neon Blue #4361EE ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.056
Use #5F5EDD 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.