#5F5BE9
Closest named color: Neon Blue (#4361EE). oklch(55.8% 0.208 278.5), rgb(95, 91, 233).
Aa
White text reads best on this color (5.04:1).
About this color
#5F5BE9 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.208 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.035 away. White text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.208) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.15:1 |
| White text | 5.04:1 |
Values
| HEX | #5F5BE9 |
| RGB | rgb(95, 91, 233) |
| HSL | hsl(242, 76%, 64%) |
| OKLCH | oklch(55.8% 0.208 278.5) |
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 #5F5BE9 | 5.04:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #5F5BE9 | 4.15:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #5F5BE9 text on white | 5.04:1 | AA | Lc 74.4 | Content text, not long reading |
| #5F5BE9 text on black | 4.15:1 | AA large text | Lc -27.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D6FC
oklch(88.4% 0.053 279.4)
-
Step 300
300
#B3BBFD
oklch(81% 0.094 278.7)
-
Step 400
400
#8D95FC
oklch(70.8% 0.149 278.5)
-
Step 500
500
#7376F9
oklch(63% 0.191 278.4)
-
Step 600
600 (this color)
#5F5BE9
oklch(55.8% 0.208 278.5)
-
Step 700
700
#4F49CA
oklch(49.1% 0.193 278.6)
-
Step 800
800
#403DA3
oklch(42.7% 0.16 278.5)
-
Step 900
900
#353682
oklch(37.8% 0.125 278)
-
Step 950
950
#1F204C
oklch(27% 0.08 278.7)
#5F5BE9 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) | #0074EE | 0.080 |
| Deuteranopia (no green cones) | #0069E6 | 0.073 |
| Tritanopia (no blue cones) | #007E99 | 0.178 |
| Achromatopsia (no color) | #6F6F6F | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F5BE9
#5F5BE9
oklch(55.8% 0.208 278.5)
- #867400
#867400
oklch(55.9% 0.116 98.4)
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 #5F5BE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.035
- Warm Blue #4B57DB ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.046
- Royal Blue #4169E1 ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.055
- Iris #6258C4 ΔE 0.057
Use #5F5BE9 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.