#366197
Closest named color: Denim Blue (#3B5B92). oklch(48.8% 0.1 255), rgb(54, 97, 151).
Aa
White text reads best on this color (6.33:1).
About this color
#366197 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.100 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.017 away. White text reads best on it, at 6.33:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #366197 |
| RGB | rgb(54, 97, 151) |
| HSL | hsl(213, 47%, 40%) |
| OKLCH | oklch(48.8% 0.1 255) |
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 #366197 | 6.33:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #366197 | 3.31:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #366197 text on white | 6.33:1 | AA | Lc 81.3 | Fine for body text |
| #366197 text on black | 3.31:1 | AA large text | Lc -20.5 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#ACC3E0
oklch(80.9% 0.048 254.3)
-
Step 400
400
#80A3D0
oklch(70.6% 0.077 255)
-
Step 500
500
#608CC4
oklch(63.2% 0.098 254.9)
-
Step 600
600
#4675B1
oklch(55.6% 0.107 255.2)
-
Step 700
700 (this color)
#366197
oklch(48.8% 0.1 255)
-
Step 800
800
#2E507B
oklch(42.7% 0.082 255.1)
-
Step 900
900
#294363
oklch(37.8% 0.064 254.3)
-
Step 950
950
#18273A
oklch(26.9% 0.041 254.8)
#366197 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) | #4A6599 | 0.027 |
| Deuteranopia (no green cones) | #3C5B96 | 0.017 |
| Tritanopia (no blue cones) | #006D75 | 0.081 |
| Achromatopsia (no color) | #5F5F5F | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366197
#366197
oklch(48.8% 0.1 255)
- #805608
#805608
oklch(48.7% 0.1 75)
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 #366197, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.017
- Dusky Blue #475F94 ΔE 0.019
- Denim #3B638C ΔE 0.021
- Light Navy Blue #2E5A88 ΔE 0.031
- Peacock Blue #016795 ΔE 0.032
- French Blue #436BAD ΔE 0.046
- Mid Blue #276AB3 ΔE 0.047
- Dusk Blue #26538D ΔE 0.047
Use #366197 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.