#3769EE
Closest named color: Neon Blue (#4361EE). oklch(56.6% 0.208 264.8), rgb(55, 105, 238).
Aa
White text reads best on this color (4.75:1).
About this color
#3769EE is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.208 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.019 away. White text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.208) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #3769EE |
| RGB | rgb(55, 105, 238) |
| HSL | hsl(224, 84%, 57%) |
| OKLCH | oklch(56.6% 0.208 264.8) |
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 #3769EE | 4.75:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #3769EE | 4.41:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #3769EE text on white | 4.75:1 | AA | Lc 72.4 | Content text, not long reading |
| #3769EE text on black | 4.41:1 | AA large text | Lc -29.3 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FD
oklch(88.4% 0.053 265.3)
-
Step 300
300
#A3C0FE
oklch(80.9% 0.094 265)
-
Step 400
400
#729DFD
oklch(70.7% 0.149 264.7)
-
Step 500
500
#4E80FB
oklch(63% 0.191 264.8)
-
Step 600
600 (this color)
#3769EE
oklch(56.6% 0.208 264.8)
-
Step 700
700
#2853CC
oklch(49% 0.194 265)
-
Step 800
800
#2245A5
oklch(42.7% 0.16 265)
-
Step 900
900
#203C83
oklch(37.8% 0.124 264.8)
-
Step 950
950
#13244D
oklch(27.2% 0.079 264.7)
#3769EE 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) | #007CF3 | 0.047 |
| Deuteranopia (no green cones) | #006BEB | 0.025 |
| Tritanopia (no blue cones) | #008AA1 | 0.163 |
| Achromatopsia (no color) | #737373 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3769EE
#3769EE
oklch(56.6% 0.208 264.8)
- #956F00
#956F00
oklch(56.4% 0.116 84.7)
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 #3769EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.019
- Royal Blue #4169E1 ΔE 0.021
- Cerulean Blue #056EEE ΔE 0.024
- Bright Blue #0165FC ΔE 0.035
- Azul #1D5DEC ΔE 0.037
- Clear Blue #247AFD ΔE 0.045
- Warm Blue #4B57DB ΔE 0.050
- Electric Blue #0652FF ΔE 0.066
Use #3769EE 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.