#336B99
Closest named color: Muted Blue (#3B719F). oklch(51.1% 0.094 245.9), rgb(51, 107, 153).
Aa
White text reads best on this color (5.66:1).
About this color
#336B99 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.094 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.021 away. White text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #336B99 |
| RGB | rgb(51, 107, 153) |
| HSL | hsl(207, 50%, 40%) |
| OKLCH | oklch(51.1% 0.094 245.9) |
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 #336B99 | 5.66:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #336B99 | 3.70:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #336B99 text on white | 5.66:1 | AA | Lc 78.1 | Fine for body text |
| #336B99 text on black | 3.70:1 | AA large text | Lc -23.6 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C4DD
oklch(80.8% 0.046 246.3)
-
Step 400
400
#7BA6CC
oklch(70.8% 0.073 245.7)
-
Step 500
500
#578FBF
oklch(63.1% 0.094 245.9)
-
Step 600
600
#3B78AB
oklch(55.5% 0.102 246.3)
-
Step 700
700 (this color)
#336B99
oklch(51.1% 0.094 245.9)
-
Step 800
800
#265377
oklch(42.8% 0.078 245.2)
-
Step 900
900
#244560
oklch(37.8% 0.061 245.1)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#336B99 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) | #576C9B | 0.040 |
| Deuteranopia (no green cones) | #496298 | 0.032 |
| Tritanopia (no blue cones) | #00767B | 0.071 |
| Achromatopsia (no color) | #676767 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #336B99
#336B99
oklch(51.1% 0.094 245.9)
- #8B5A23
#8B5A23
oklch(51.1% 0.095 65.6)
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 #336B99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.021
- Ocean Blue #03719C ΔE 0.025
- Denim #3B638C ΔE 0.027
- Peacock Blue #016795 ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.032
- Sea Blue #047495 ΔE 0.034
- Dusky Blue #475F94 ΔE 0.037
- French Blue #436BAD ΔE 0.037
Use #336B99 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.