#5E5DDA
Closest named color: Dark Periwinkle (#665FD1). oklch(54.9% 0.186 278.7), rgb(94, 93, 218).
Aa
White text reads best on this color (5.17:1).
About this color
#5E5DDA is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.186 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.019 away. White text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.186) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.05:1 |
| White text | 5.17:1 |
Values
| HEX | #5E5DDA |
| RGB | rgb(94, 93, 218) |
| HSL | hsl(240, 63%, 61%) |
| OKLCH | oklch(54.9% 0.186 278.7) |
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 #5E5DDA | 5.17:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #5E5DDA | 4.05:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #5E5DDA text on white | 5.17:1 | AA | Lc 75.3 | Fine for body text |
| #5E5DDA text on black | 4.05:1 | AA large text | Lc -26.4 | 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
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F8
oklch(88.6% 0.046 278.6)
-
Step 300
300
#B4BCF7
oklch(81% 0.084 278.4)
-
Step 400
400
#8F97F3
oklch(70.8% 0.134 278.6)
-
Step 500
500
#757AEE
oklch(63.2% 0.171 278.5)
-
Step 600
600 (this color)
#5E5DDA
oklch(54.9% 0.186 278.7)
-
Step 700
700
#504EBF
oklch(49.2% 0.172 278.8)
-
Step 800
800
#41409B
oklch(42.6% 0.144 278.8)
-
Step 900
900
#36387B
oklch(37.7% 0.111 278.3)
-
Step 950
950
#202148
oklch(27% 0.071 279.4)
#5E5DDA 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) | #0072DE | 0.077 |
| Deuteranopia (no green cones) | #0068D7 | 0.072 |
| Tritanopia (no blue cones) | #147B92 | 0.163 |
| Achromatopsia (no color) | #6D6D6D | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E5DDA
#5E5DDA
oklch(54.9% 0.186 278.7)
- #827100
#827100
oklch(54.8% 0.113 98.8)
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 #5E5DDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.019
- Slate Blue #6A5ACD ΔE 0.027
- Light Indigo #6D5ACF ΔE 0.028
- Warm Blue #4B57DB ΔE 0.031
- Iris #6258C4 ΔE 0.035
- Royal Blue #4169E1 ΔE 0.042
- Neon Blue #4361EE ΔE 0.044
- Medium Slate Blue #7B68EE ΔE 0.060
Use #5E5DDA 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.