#605ECE
Closest named color: Dark Periwinkle (#665FD1). oklch(54.3% 0.169 280), rgb(96, 94, 206).
Aa
White text reads best on this color (5.26:1).
About this color
#605ECE is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.169 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.011 away. White text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #605ECE |
| RGB | rgb(96, 94, 206) |
| HSL | hsl(241, 53%, 59%) |
| OKLCH | oklch(54.3% 0.169 280) |
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 #605ECE | 5.26:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #605ECE | 3.98:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #605ECE text on white | 5.26:1 | AA | Lc 75.8 | Fine for body text |
| #605ECE text on black | 3.98:1 | AA large text | Lc -25.9 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B6BCF1
oklch(80.9% 0.075 279.5)
-
Step 400
400
#9297EB
oklch(70.6% 0.122 280.2)
-
Step 500
500
#797BE4
oklch(63% 0.155 280.1)
-
Step 600
600 (this color)
#605ECE
oklch(54.3% 0.169 280)
-
Step 700
700
#5350B6
oklch(49.1% 0.157 280.2)
-
Step 800
800
#434293
oklch(42.6% 0.13 279.9)
-
Step 900
900
#383975
oklch(37.7% 0.1 279.7)
-
Step 950
950
#212245
oklch(27.1% 0.064 280)
#605ECE 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) | #1870D2 | 0.073 |
| Deuteranopia (no green cones) | #0068CC | 0.076 |
| Tritanopia (no blue cones) | #2F778D | 0.144 |
| Achromatopsia (no color) | #6C6C6C | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #605ECE
#605ECE
oklch(54.3% 0.169 280)
- #7F7000
#7F7000
oklch(54.2% 0.113 100)
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 #605ECE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.011
- Slate Blue #6A5ACD ΔE 0.017
- Iris #6258C4 ΔE 0.020
- Light Indigo #6D5ACF ΔE 0.021
- Warm Blue #4B57DB ΔE 0.041
- Royal Blue #4169E1 ΔE 0.049
- Neon Blue #4361EE ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.064
Use #605ECE 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.