#5D5EE3
Closest named color: Dark Periwinkle (#665FD1). oklch(55.7% 0.197 277.6), rgb(93, 94, 227).
Aa
White text reads best on this color (5.02:1).
About this color
#5D5EE3 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.197 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.031 away. White text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.17:1 |
| White text | 5.02:1 |
Values
| HEX | #5D5EE3 |
| RGB | rgb(93, 94, 227) |
| HSL | hsl(240, 71%, 63%) |
| OKLCH | oklch(55.7% 0.197 277.6) |
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 #5D5EE3 | 5.02:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #5D5EE3 | 4.17:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #5D5EE3 text on white | 5.02:1 | AA | Lc 74.3 | Content text, not long reading |
| #5D5EE3 text on black | 4.17:1 | AA large text | Lc -27.4 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D1D7FA
oklch(88.6% 0.049 277.7)
-
Step 300
300
#B2BCFA
oklch(81% 0.088 277.1)
-
Step 400
400
#8C96F7
oklch(70.6% 0.141 277.7)
-
Step 500
500
#7279F4
oklch(63.2% 0.181 277.4)
-
Step 600
600 (this color)
#5D5EE3
oklch(55.7% 0.197 277.6)
-
Step 700
700
#4D4CC5
oklch(49.1% 0.183 277.6)
-
Step 800
800
#3F3F9F
oklch(42.6% 0.152 277.8)
-
Step 900
900
#35377E
oklch(37.7% 0.118 277.9)
-
Step 950
950
#1E214A
oklch(27% 0.075 277)
#5D5EE3 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) | #0075E7 | 0.076 |
| Deuteranopia (no green cones) | #0069E0 | 0.069 |
| Tritanopia (no blue cones) | #007E97 | 0.170 |
| Achromatopsia (no color) | #6F6F6F | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D5EE3
#5D5EE3
oklch(55.7% 0.197 277.6)
- #867300
#867300
oklch(55.7% 0.115 97.6)
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 #5D5EE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.031
- Warm Blue #4B57DB ΔE 0.033
- Neon Blue #4361EE ΔE 0.035
- Royal Blue #4169E1 ΔE 0.039
- Light Indigo #6D5ACF ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.039
- Iris #6258C4 ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.055
Use #5D5EE3 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.