#366586
Closest named color: Denim (#3B638C). oklch(48.8% 0.074 241.1), rgb(54, 101, 134).
Aa
White text reads best on this color (6.24:1).
About this color
#366586 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.074 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.014 away. White text reads best on it, at 6.24:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.36:1 |
| White text | 6.24:1 |
Values
| HEX | #366586 |
| RGB | rgb(54, 101, 134) |
| HSL | hsl(205, 43%, 37%) |
| OKLCH | oklch(48.8% 0.074 241.1) |
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 #366586 | 6.24:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #366586 | 3.36:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #366586 text on white | 6.24:1 | AA | Lc 81.0 | Fine for body text |
| #366586 text on black | 3.36:1 | AA large text | Lc -20.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE5
oklch(88.5% 0.02 240.8)
-
Step 300
300
#ADC4D6
oklch(80.9% 0.036 241.6)
-
Step 400
400
#81A6C1
oklch(70.7% 0.057 240.2)
-
Step 500
500
#608FB2
oklch(63% 0.074 241.6)
-
Step 600
600
#46799E
oklch(55.6% 0.08 241.7)
-
Step 700
700 (this color)
#366586
oklch(48.8% 0.074 241.1)
-
Step 800
800
#2E536E
oklch(42.7% 0.062 241.9)
-
Step 900
900
#294559
oklch(37.7% 0.048 240.8)
-
Step 950
950
#192834
oklch(26.9% 0.03 243.3)
#366586 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) | #566588 | 0.039 |
| Deuteranopia (no green cones) | #4B5D85 | 0.031 |
| Tritanopia (no blue cones) | #006D70 | 0.058 |
| Achromatopsia (no color) | #606060 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366586
#366586
oklch(48.8% 0.074 241.1)
- #7E5632
#7E5632
oklch(48.8% 0.074 61.7)
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 #366586, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.014
- Peacock Blue #016795 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.040
- Slate #516572 ΔE 0.043
- Ocean Blue #03719C ΔE 0.046
Use #366586 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.