#3A6AAB
Closest named color: French Blue (#436BAD). oklch(52.2% 0.116 256.5), rgb(58, 106, 171).
Aa
White text reads best on this color (5.48:1).
About this color
#3A6AAB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.116 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.011 away. White text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #3A6AAB |
| RGB | rgb(58, 106, 171) |
| HSL | hsl(215, 49%, 45%) |
| OKLCH | oklch(52.2% 0.116 256.5) |
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 #3A6AAB | 5.48:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #3A6AAB | 3.82:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #3A6AAB text on white | 5.48:1 | AA | Lc 77.1 | Fine for body text |
| #3A6AAB text on black | 3.82:1 | AA large text | Lc -24.6 | 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 700.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDAEE
oklch(88.4% 0.031 257.2)
-
Step 300
300
#AAC3E5
oklch(81% 0.055 256.1)
-
Step 400
400
#7CA3D8
oklch(70.7% 0.089 256.2)
-
Step 500
500
#5A8BCE
oklch(63.1% 0.115 256.5)
-
Step 600
600
#3F74BB
oklch(55.7% 0.125 256.4)
-
Step 700
700 (this color)
#3A6AAB
oklch(52.2% 0.116 256.5)
-
Step 800
800
#294F82
oklch(42.6% 0.096 256.4)
-
Step 900
900
#264269
oklch(37.7% 0.075 256.9)
-
Step 950
950
#17273D
oklch(27% 0.047 256.6)
#3A6AAB 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) | #4D6FAE | 0.027 |
| Deuteranopia (no green cones) | #3D64AA | 0.017 |
| Tritanopia (no blue cones) | #007982 | 0.094 |
| Achromatopsia (no color) | #696969 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A6AAB
#3A6AAB
oklch(52.2% 0.116 256.5)
- #8D5F00
#8D5F00
oklch(52.2% 0.11 76)
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 #3A6AAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.011
- Mid Blue #276AB3 ΔE 0.019
- Flat Blue #3C73A8 ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Dusky Blue #475F94 ΔE 0.043
- Ocean Blue #03719C ΔE 0.045
- Windows Blue #3778BF ΔE 0.045
- Nice Blue #107AB0 ΔE 0.047
Use #3A6AAB 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.