#5E63DE
Closest named color: Dark Periwinkle (#665FD1). oklch(56.3% 0.184 277), rgb(94, 99, 222).
Aa
White text reads best on this color (4.86:1).
About this color
#5E63DE is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.184 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.023 away. White text reads best on it, at 4.86:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #5E63DE |
| RGB | rgb(94, 99, 222) |
| HSL | hsl(238, 66%, 62%) |
| OKLCH | oklch(56.3% 0.184 277) |
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 #5E63DE | 4.86:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #5E63DE | 4.31:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #5E63DE text on white | 4.86:1 | AA | Lc 73.4 | Content text, not long reading |
| #5E63DE text on black | 4.31:1 | AA large text | Lc -28.3 | 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
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300
#B3BCF6
oklch(80.9% 0.083 277.5)
-
Step 400
400
#8C98F2
oklch(70.8% 0.132 276.7)
-
Step 500
500
#727BED
oklch(63.1% 0.169 277)
-
Step 600
600 (this color)
#5E63DE
oklch(56.3% 0.184 277)
-
Step 700
700
#4C4FBF
oklch(49.1% 0.172 276.8)
-
Step 800
800
#3E429A
oklch(42.7% 0.141 276.7)
-
Step 900
900
#34397B
oklch(37.8% 0.11 276.5)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#5E63DE 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) | #0077E2 | 0.073 |
| Deuteranopia (no green cones) | #006CDB | 0.069 |
| Tritanopia (no blue cones) | #018097 | 0.161 |
| Achromatopsia (no color) | #717171 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E63DE
#5E63DE
oklch(56.3% 0.184 277)
- #897400
#897400
oklch(56.2% 0.116 96.4)
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 #5E63DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.023
- Royal Blue #4169E1 ΔE 0.035
- Slate Blue #6A5ACD ΔE 0.035
- Light Indigo #6D5ACF ΔE 0.035
- Warm Blue #4B57DB ΔE 0.041
- Neon Blue #4361EE ΔE 0.041
- Iris #6258C4 ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.051
Use #5E63DE 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.