#3D5FEF
Closest named color: Neon Blue (#4361EE). oklch(55% 0.219 268), rgb(61, 95, 239).
Aa
White text reads best on this color (5.14:1).
About this color
#3D5FEF is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.219 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.008 away. White text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.219) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #3D5FEF |
| RGB | rgb(61, 95, 239) |
| HSL | hsl(229, 85%, 59%) |
| OKLCH | oklch(55% 0.219 268) |
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 #3D5FEF | 5.14:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #3D5FEF | 4.08:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #3D5FEF text on white | 5.14:1 | AA | Lc 74.8 | Content text, not long reading |
| #3D5FEF text on black | 4.08:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFE
oklch(93.7% 0.028 268.4)
-
Step 200
200
#C9D9FE
oklch(88.5% 0.054 266.8)
-
Step 300
300
#A6BFFF
oklch(80.9% 0.095 267.8)
-
Step 400
400
#789BFF
oklch(70.8% 0.152 267.9)
-
Step 500
500
#577DFF
oklch(63.1% 0.197 268)
-
Step 600
600 (this color)
#3D5FEF
oklch(55% 0.219 268)
-
Step 700
700
#314FD2
oklch(49.1% 0.204 267.8)
-
Step 800
800
#2942AA
oklch(42.8% 0.169 268)
-
Step 900
900
#243986
oklch(37.6% 0.132 267.9)
-
Step 950
950
#15224F
oklch(27% 0.084 268.2)
#3D5FEF 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) | #0076F4 | 0.055 |
| Deuteranopia (no green cones) | #0065EC | 0.032 |
| Tritanopia (no blue cones) | #00849E | 0.173 |
| Achromatopsia (no color) | #6D6D6D | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5FEF
#3D5FEF
oklch(55% 0.219 268)
- #8D6D00
#8D6D00
oklch(55.1% 0.113 88.2)
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 #3D5FEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.008
- Azul #1D5DEC ΔE 0.026
- Royal Blue #4169E1 ΔE 0.033
- Bright Blue #0165FC ΔE 0.035
- Warm Blue #4B57DB ΔE 0.037
- Cerulean Blue #056EEE ΔE 0.040
- Electric Blue #0652FF ΔE 0.052
- Clear Blue #247AFD ΔE 0.064
Use #3D5FEF 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.