#3C6DD7
Closest named color: Royal Blue (#4169E1). oklch(55.8% 0.172 263.3), rgb(60, 109, 215).
Aa
White text reads best on this color (4.81:1).
About this color
#3C6DD7 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.172 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.019 away. White text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.36:1 |
| White text | 4.81:1 |
Values
| HEX | #3C6DD7 |
| RGB | rgb(60, 109, 215) |
| HSL | hsl(221, 66%, 54%) |
| OKLCH | oklch(55.8% 0.172 263.3) |
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 #3C6DD7 | 4.81:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #3C6DD7 | 4.36:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #3C6DD7 text on white | 4.81:1 | AA | Lc 73.0 | Content text, not long reading |
| #3C6DD7 text on black | 4.36:1 | AA large text | Lc -28.7 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A7C1F3
oklch(80.9% 0.077 263.3)
-
Step 400
400
#789FEE
oklch(70.7% 0.124 263.5)
-
Step 500
500
#5585E8
oklch(63.1% 0.158 263.1)
-
Step 600
600 (this color)
#3C6DD7
oklch(55.8% 0.172 263.3)
-
Step 700
700
#2E5ABA
oklch(49.2% 0.16 263.2)
-
Step 800
800
#274A96
oklch(42.7% 0.131 263.3)
-
Step 900
900
#233E78
oklch(37.6% 0.104 263.4)
-
Step 950
950
#152546
oklch(27% 0.065 263.2)
#3C6DD7 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) | #2F79DB | 0.031 |
| Deuteranopia (no green cones) | #006BD5 | 0.032 |
| Tritanopia (no blue cones) | #008698 | 0.136 |
| Achromatopsia (no color) | #727272 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C6DD7
#3C6DD7
oklch(55.8% 0.172 263.3)
- #946D00
#946D00
oklch(55.9% 0.115 83.7)
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 #3C6DD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.019
- Cerulean Blue #056EEE ΔE 0.043
- Neon Blue #4361EE ΔE 0.047
- Windows Blue #3778BF ΔE 0.051
- Warm Blue #4B57DB ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.056
- Azul #1D5DEC ΔE 0.059
- Mid Blue #276AB3 ΔE 0.060
Use #3C6DD7 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.