#406D9F
Closest named color: Muted Blue (#3B719F). oklch(52.5% 0.094 252.3), rgb(64, 109, 159).
Aa
White text reads best on this color (5.37:1).
About this color
#406D9F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.094 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.012 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #406D9F |
| RGB | rgb(64, 109, 159) |
| HSL | hsl(212, 43%, 44%) |
| OKLCH | oklch(52.5% 0.094 252.3) |
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 #406D9F | 5.37:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #406D9F | 3.90:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #406D9F text on white | 5.37:1 | AA | Lc 76.6 | Fine for body text |
| #406D9F text on black | 3.90:1 | AA large text | Lc -25.1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#AEC3DC
oklch(80.9% 0.042 252.9)
-
Step 400
400
#82A4CA
oklch(70.7% 0.067 251.6)
-
Step 500
500
#638DBD
oklch(63.2% 0.086 252.4)
-
Step 600
600 (this color)
#406D9F
oklch(52.5% 0.094 252.3)
-
Step 700
700
#3A6391
oklch(49.1% 0.088 252.5)
-
Step 800
800
#305175
oklch(42.7% 0.072 251.8)
-
Step 900
900
#2B435F
oklch(37.6% 0.057 253)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#406D9F 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) | #5870A1 | 0.030 |
| Deuteranopia (no green cones) | #4C669E | 0.022 |
| Tritanopia (no blue cones) | #00787F | 0.078 |
| Achromatopsia (no color) | #6A6A6A | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406D9F
#406D9F
oklch(52.5% 0.094 252.3)
- #8B6124
#8B6124
oklch(52.5% 0.094 72.9)
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 #406D9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.012
- Flat Blue #3C73A8 ΔE 0.020
- French Blue #436BAD ΔE 0.025
- Dull Blue #49759C ΔE 0.028
- Ocean Blue #03719C ΔE 0.036
- Denim #3B638C ΔE 0.039
- Mid Blue #276AB3 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.040
Use #406D9F 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.