#2C365A
Closest named color: Prussian Blue (#1D3557). oklch(34.2% 0.065 270.9), rgb(44, 54, 90).
Aa
White text reads best on this color (11.78:1).
About this color
#2C365A is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.065 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.022 away. White text reads best on it, at 11.78:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.78:1 |
| White text | 11.78:1 |
Values
| HEX | #2C365A |
| RGB | rgb(44, 54, 90) |
| HSL | hsl(227, 34%, 26%) |
| OKLCH | oklch(34.2% 0.065 270.9) |
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 #2C365A | 11.78:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #2C365A | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #2C365A text on white | 11.78:1 | AAA | Lc 97.0 | Preferred for body text |
| #2C365A text on black | 1.78:1 | Fails | Lc 0.0 | 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
#B5C0E1
oklch(81% 0.048 270.8)
-
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
#5C6FB2
oklch(55.7% 0.107 270.6)
-
Step 700
700
#4C5C9A
oklch(49.1% 0.101 271.3)
-
Step 800
800
#3E4C7C
oklch(42.8% 0.082 270.3)
-
Step 900
900 (this color)
#2C365A
oklch(34.2% 0.065 270.9)
-
Step 950
950
#1F253B
oklch(27% 0.042 271.7)
#2C365A 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) | #293A5B | 0.012 |
| Deuteranopia (no green cones) | #243659 | 0.011 |
| Tritanopia (no blue cones) | #1A3E43 | 0.059 |
| Achromatopsia (no color) | #383838 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C365A
#2C365A
oklch(34.2% 0.065 270.9)
- #453707
#453707
oklch(34.3% 0.065 91.4)
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 #2C365A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.036
- Gunmetal #293241 ΔE 0.045
- Marine Blue #01386A ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.046
- Midnight Green #073B4C ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.051
- Onyx #343A40 ΔE 0.053
Use #2C365A 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.