#5E5EDC
Closest named color: Dark Periwinkle (#665FD1). oklch(55.2% 0.188 278.3), rgb(94, 94, 220).
Aa
White text reads best on this color (5.10:1).
About this color
#5E5EDC is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.188 and its hue 278°. 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 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.11:1 |
| White text | 5.10:1 |
Values
| HEX | #5E5EDC |
| RGB | rgb(94, 94, 220) |
| HSL | hsl(240, 64%, 62%) |
| OKLCH | oklch(55.2% 0.188 278.3) |
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 #5E5EDC | 5.10:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #5E5EDC | 4.11:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #5E5EDC text on white | 5.10:1 | AA | Lc 74.9 | Content text, not long reading |
| #5E5EDC text on black | 4.11:1 | AA large text | Lc -26.9 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B4BCF7
oklch(81% 0.084 278.4)
-
Step 400
400
#8E97F3
oklch(70.8% 0.134 278.1)
-
Step 500
500
#747AEF
oklch(63.2% 0.172 278)
-
Step 600
600 (this color)
#5E5EDC
oklch(55.2% 0.188 278.3)
-
Step 700
700
#4F4EC0
oklch(49.2% 0.174 278.3)
-
Step 800
800
#40409B
oklch(42.6% 0.145 278.3)
-
Step 900
900
#36387B
oklch(37.7% 0.111 278.3)
-
Step 950
950
#1F2148
oklch(26.9% 0.071 278.2)
#5E5EDC 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) | #0073E0 | 0.076 |
| Deuteranopia (no green cones) | #0069D9 | 0.072 |
| Tritanopia (no blue cones) | #0D7C94 | 0.163 |
| Achromatopsia (no color) | #6E6E6E | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E5EDC
#5E5EDC
oklch(55.2% 0.188 278.3)
- #847200
#847200
oklch(55.2% 0.114 98.2)
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 #5E5EDC, 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 0.029
- Light Indigo #6D5ACF ΔE 0.030
- Warm Blue #4B57DB ΔE 0.033
- Iris #6258C4 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.040
- Neon Blue #4361EE ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.058
Use #5E5EDC 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.