#336F9D
Closest named color: Muted Blue (#3B719F). oklch(52.3% 0.096 244.3), rgb(51, 111, 157).
Aa
White text reads best on this color (5.38:1).
About this color
#336F9D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.096 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.010 away. White text reads best on it, at 5.38:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.90:1 |
| White text | 5.38:1 |
Values
| HEX | #336F9D |
| RGB | rgb(51, 111, 157) |
| HSL | hsl(206, 51%, 41%) |
| OKLCH | oklch(52.3% 0.096 244.3) |
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 #336F9D | 5.38:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #336F9D | 3.90:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #336F9D text on white | 5.38:1 | AA | Lc 76.6 | Fine for body text |
| #336F9D text on black | 3.90:1 | AA large text | Lc -25.2 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CBDBE9
oklch(88.4% 0.026 244.5)
-
Step 300
300
#A8C5DD
oklch(81% 0.046 243.3)
-
Step 400
400
#79A6CC
oklch(70.7% 0.074 244.6)
-
Step 500
500
#548FBF
oklch(63% 0.095 244.7)
-
Step 600
600
#3779AB
oklch(55.6% 0.103 244.1)
-
Step 700
700 (this color)
#336F9D
oklch(52.3% 0.096 244.3)
-
Step 800
800
#245377
oklch(42.7% 0.079 244.4)
-
Step 900
900
#224560
oklch(37.7% 0.062 243.8)
-
Step 950
950
#152838
oklch(26.9% 0.039 245.4)
#336F9D 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) | #5A709F | 0.043 |
| Deuteranopia (no green cones) | #4C669C | 0.033 |
| Tritanopia (no blue cones) | #007A7F | 0.071 |
| Achromatopsia (no color) | #6A6A6A | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #336F9D
#336F9D
oklch(52.3% 0.096 244.3)
- #905D27
#905D27
oklch(52.4% 0.096 64.2)
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 #336F9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.010
- Flat Blue #3C73A8 ΔE 0.022
- Ocean Blue #03719C ΔE 0.022
- Dull Blue #49759C ΔE 0.030
- Sea Blue #047495 ΔE 0.030
- French Blue #436BAD ΔE 0.034
- Denim #3B638C ΔE 0.039
- Nice Blue #107AB0 ΔE 0.039
Use #336F9D 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.