#364166
Closest named color: Dark Grey Blue (#29465B). oklch(38.3% 0.065 270.5), rgb(54, 65, 102).
Aa
White text reads best on this color (9.97:1).
About this color
#364166 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.065 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 9.97:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.10:1 |
| White text | 9.97:1 |
Values
| HEX | #364166 |
| RGB | rgb(54, 65, 102) |
| HSL | hsl(226, 31%, 31%) |
| OKLCH | oklch(38.3% 0.065 270.5) |
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 #364166 | 9.97:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #364166 | 2.10:1 | Fails | Lc 10.8 | Not readable |
| #364166 text on white | 9.97:1 | AAA | Lc 93.1 | Preferred for body text |
| #364166 text on black | 2.10:1 | Fails | Lc -9.4 | Not readable |
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 900.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EC
oklch(88.6% 0.027 269.6)
-
Step 300
300
#B4C0E1
oklch(80.9% 0.049 269.5)
-
Step 400
400
#8E9ED2
oklch(70.6% 0.079 271.1)
-
Step 500
500
#7386C6
oklch(63.1% 0.099 270.7)
-
Step 600
600
#5B6FB3
oklch(55.6% 0.109 270.2)
-
Step 700
700
#4B5C9A
oklch(49% 0.102 270.7)
-
Step 800
800
#3E4C7D
oklch(42.8% 0.083 270.5)
-
Step 900
900 (this color)
#364166
oklch(38.3% 0.065 270.5)
-
Step 950
950
#1F253B
oklch(27% 0.042 271.7)
#364166 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) | #344568 | 0.012 |
| Deuteranopia (no green cones) | #2F4165 | 0.010 |
| Tritanopia (no blue cones) | #25494E | 0.060 |
| Achromatopsia (no color) | #424242 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364166
#364166
oklch(38.3% 0.065 270.5)
- #504214
#504214
oklch(38.4% 0.066 91.9)
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 #364166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Charcoal #264653 ΔE 0.046
- Twilight Blue #0A437A ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.058
- Marine Blue #01386A ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.063
- Light Navy #155084 ΔE 0.063
Use #364166 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.