#3768EC
Closest named color: Neon Blue (#4361EE). oklch(56.2% 0.206 264.9), rgb(55, 104, 236).
Aa
White text reads best on this color (4.82:1).
About this color
#3768EC is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.206 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.018 away. White text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.206) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #3768EC |
| RGB | rgb(55, 104, 236) |
| HSL | hsl(224, 83%, 57%) |
| OKLCH | oklch(56.2% 0.206 264.9) |
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 #3768EC | 4.82:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #3768EC | 4.35:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #3768EC text on white | 4.82:1 | AA | Lc 72.9 | Content text, not long reading |
| #3768EC text on black | 4.35:1 | AA large text | Lc -28.8 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A3C0FD
oklch(80.9% 0.092 264.7)
-
Step 400
400
#729DFD
oklch(70.7% 0.149 264.7)
-
Step 500
500
#4F80FB
oklch(63% 0.191 265)
-
Step 600
600 (this color)
#3768EC
oklch(56.2% 0.206 264.9)
-
Step 700
700
#2954CB
oklch(49.2% 0.191 264.9)
-
Step 800
800
#2245A4
oklch(42.6% 0.159 264.9)
-
Step 900
900
#203C82
oklch(37.8% 0.123 264.7)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#3768EC 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) | #007BF1 | 0.047 |
| Deuteranopia (no green cones) | #006AE9 | 0.025 |
| Tritanopia (no blue cones) | #0089A0 | 0.162 |
| Achromatopsia (no color) | #727272 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3768EC
#3768EC
oklch(56.2% 0.206 264.9)
- #946E00
#946E00
oklch(56.1% 0.115 84.5)
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 #3768EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.018
- Royal Blue #4169E1 ΔE 0.019
- Cerulean Blue #056EEE ΔE 0.024
- Azul #1D5DEC ΔE 0.035
- Bright Blue #0165FC ΔE 0.036
- Warm Blue #4B57DB ΔE 0.047
- Clear Blue #247AFD ΔE 0.048
- Electric Blue #0652FF ΔE 0.066
Use #3768EC 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.