#3C6DEF
Closest named color: Royal Blue (#4169E1). oklch(57.6% 0.203 265), rgb(60, 109, 239).
Aa
Black text reads best on this color (4.62:1).
About this color
#3C6DEF is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.203 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.023 away. Black text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.203) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #3C6DEF |
| RGB | rgb(60, 109, 239) |
| HSL | hsl(224, 85%, 59%) |
| OKLCH | oklch(57.6% 0.203 265) |
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 #3C6DEF | 4.53:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #3C6DEF | 4.62:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #3C6DEF text on white | 4.53:1 | AA | Lc 71.0 | Content text, not long reading |
| #3C6DEF text on black | 4.62:1 | AA | Lc -30.7 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A4C0FD
oklch(80.9% 0.092 265.3)
-
Step 400
400
#739DFB
oklch(70.7% 0.146 264.7)
-
Step 500
500
#5081F9
oklch(63.1% 0.187 264.8)
-
Step 600
600 (this color)
#3C6DEF
oklch(57.6% 0.203 265)
-
Step 700
700
#2A54CA
oklch(49.1% 0.189 265.1)
-
Step 800
800
#2346A3
oklch(42.8% 0.156 264.8)
-
Step 900
900
#213C81
oklch(37.7% 0.121 265)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#3C6DEF 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) | #007FF4 | 0.046 |
| Deuteranopia (no green cones) | #006EEC | 0.029 |
| Tritanopia (no blue cones) | #008DA3 | 0.161 |
| Achromatopsia (no color) | #767676 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C6DEF
#3C6DEF
oklch(57.6% 0.203 265)
- #997200
#997200
oklch(57.5% 0.118 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 #3C6DEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.023
- Cerulean Blue #056EEE ΔE 0.027
- Neon Blue #4361EE ΔE 0.027
- Clear Blue #247AFD ΔE 0.037
- Bright Blue #0165FC ΔE 0.042
- Azul #1D5DEC ΔE 0.048
- Warm Blue #4B57DB ΔE 0.058
- Cornflower #6A79F7 ΔE 0.064
Use #3C6DEF 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.