#615FFF
Closest named color: Neon Blue (#4361EE). oklch(58.3% 0.23 277.1), rgb(97, 95, 255).
Aa
Black text reads best on this color (4.58:1).
About this color
#615FFF is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.230 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.045 away. Black text reads best on it, at 4.58:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.230) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #615FFF |
| RGB | rgb(97, 95, 255) |
| HSL | hsl(241, 100%, 69%) |
| OKLCH | oklch(58.3% 0.23 277.1) |
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 #615FFF | 4.57:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #615FFF | 4.58:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #615FFF text on white | 4.57:1 | AA | Lc 71.2 | Content text, not long reading |
| #615FFF text on black | 4.58:1 | AA | Lc -30.5 | Non-text elements, placeholder text |
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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CFD6FF
oklch(88.4% 0.057 277.5)
-
Step 300
300
#B0BBFF
oklch(80.8% 0.097 276.9)
-
Step 400
400
#8A95FF
oklch(70.7% 0.154 277.2)
-
Step 500
500
#6F75FF
oklch(63% 0.201 277.1)
-
Step 600
600 (this color)
#615FFF
oklch(58.3% 0.23 277.1)
-
Step 700
700
#4B44D6
oklch(49.1% 0.215 277.1)
-
Step 800
800
#3D3AAD
oklch(42.8% 0.177 277)
-
Step 900
900
#333489
oklch(37.8% 0.138 277)
-
Step 950
950
#1D1F50
oklch(26.9% 0.088 277)
#615FFF 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) | #007CFF | 0.083 |
| Deuteranopia (no green cones) | #006FFC | 0.071 |
| Tritanopia (no blue cones) | #0088A6 | 0.193 |
| Achromatopsia (no color) | #757575 | 0.231 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #615FFF
#615FFF
oklch(58.3% 0.23 277.1)
- #907B00
#907B00
oklch(58.5% 0.121 97.1)
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 #615FFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.045
- Medium Slate Blue #7B68EE ΔE 0.052
- Royal Blue #4169E1 ΔE 0.062
- Cornflower #6A79F7 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.066
- Dark Periwinkle #665FD1 ΔE 0.070
- Bright Blue #0165FC ΔE 0.071
- Purpley #8756E4 ΔE 0.073
Use #615FFF 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.