#3B6CAE
Closest named color: French Blue (#436BAD). oklch(52.9% 0.117 256.5), rgb(59, 108, 174).
Aa
White text reads best on this color (5.32:1).
About this color
#3B6CAE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.117 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.008 away. White text reads best on it, at 5.32:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.94:1 |
| White text | 5.32:1 |
Values
| HEX | #3B6CAE |
| RGB | rgb(59, 108, 174) |
| HSL | hsl(214, 49%, 46%) |
| OKLCH | oklch(52.9% 0.117 256.5) |
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 #3B6CAE | 5.32:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #3B6CAE | 3.94:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #3B6CAE text on white | 5.32:1 | AA | Lc 76.3 | Fine for body text |
| #3B6CAE text on black | 3.94:1 | AA large text | Lc -25.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF4
oklch(93.5% 0.015 257.2)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ABC3E3
oklch(81% 0.052 255.7)
-
Step 400
400
#7EA3D5
oklch(70.7% 0.084 256.1)
-
Step 500
500
#5D8BCA
oklch(63.1% 0.108 256.5)
-
Step 600
600 (this color)
#3B6CAE
oklch(52.9% 0.117 256.5)
-
Step 700
700
#34619D
oklch(49% 0.109 256.3)
-
Step 800
800
#2C4F80
oklch(42.6% 0.091 257.1)
-
Step 900
900
#284266
oklch(37.6% 0.07 256.8)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#3B6CAE 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) | #4F71B1 | 0.028 |
| Deuteranopia (no green cones) | #3E66AD | 0.016 |
| Tritanopia (no blue cones) | #007B84 | 0.095 |
| Achromatopsia (no color) | #6B6B6B | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B6CAE
#3B6CAE
oklch(52.9% 0.117 256.5)
- #8F6100
#8F6100
oklch(52.8% 0.111 76.5)
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 #3B6CAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.008
- Mid Blue #276AB3 ΔE 0.019
- Flat Blue #3C73A8 ΔE 0.024
- Muted Blue #3B719F ΔE 0.031
- Windows Blue #3778BF ΔE 0.038
- Nice Blue #107AB0 ΔE 0.043
- Dull Blue #49759C ΔE 0.046
- Ocean Blue #03719C ΔE 0.046
Use #3B6CAE 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.