#366499
Closest named color: Denim (#3B638C). oklch(49.6% 0.099 253.3), rgb(54, 100, 153).
Aa
White text reads best on this color (6.10:1).
About this color
#366499 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.099 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.021 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.43:1 |
| White text | 6.10:1 |
Values
| HEX | #366499 |
| RGB | rgb(54, 100, 153) |
| HSL | hsl(212, 48%, 41%) |
| OKLCH | oklch(49.6% 0.099 253.3) |
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 #366499 | 6.10:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #366499 | 3.43:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #366499 text on white | 6.10:1 | AA | Lc 80.3 | Fine for body text |
| #366499 text on black | 3.43:1 | AA large text | Lc -21.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ABC3E0
oklch(80.9% 0.049 253.3)
-
Step 400
400
#7FA4D0
oklch(70.8% 0.077 253.2)
-
Step 500
500
#5E8CC4
oklch(63.1% 0.099 254)
-
Step 600
600
#4376B0
oklch(55.7% 0.106 252.9)
-
Step 700
700 (this color)
#366499
oklch(49.6% 0.099 253.3)
-
Step 800
800
#2C517B
oklch(42.8% 0.082 252.9)
-
Step 900
900
#284363
oklch(37.7% 0.064 253.6)
-
Step 950
950
#18273A
oklch(26.9% 0.041 254.8)
#366499 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) | #4D679B | 0.028 |
| Deuteranopia (no green cones) | #405E98 | 0.019 |
| Tritanopia (no blue cones) | #007077 | 0.080 |
| Achromatopsia (no color) | #626262 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366499
#366499
oklch(49.6% 0.099 253.3)
- #845810
#845810
oklch(49.7% 0.099 73.1)
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 #366499, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.021
- Dusky Blue #475F94 ΔE 0.022
- Denim Blue #3B5B92 ΔE 0.026
- Peacock Blue #016795 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.039
- Muted Blue #3B719F ΔE 0.039
- French Blue #436BAD ΔE 0.039
- Ocean Blue #03719C ΔE 0.041
Use #366499 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.