#2D365C
Closest named color: Prussian Blue (#1D3557). oklch(34.4% 0.068 272.3), rgb(45, 54, 92).
Aa
White text reads best on this color (11.70:1).
About this color
#2D365C is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.068 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.024 away. White text reads best on it, at 11.70:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.79:1 |
| White text | 11.70:1 |
Values
| HEX | #2D365C |
| RGB | rgb(45, 54, 92) |
| HSL | hsl(229, 34%, 27%) |
| OKLCH | oklch(34.4% 0.068 272.3) |
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 #2D365C | 11.70:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #2D365C | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #2D365C text on white | 11.70:1 | AAA | Lc 96.8 | Preferred for body text |
| #2D365C text on black | 1.79:1 | 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
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D2D8EC
oklch(88.4% 0.028 272.5)
-
Step 300
300
#B5BFE2
oklch(80.8% 0.051 272.7)
-
Step 400
400
#8F9ED4
oklch(70.8% 0.081 272.2)
-
Step 500
500
#7485C8
oklch(63.1% 0.103 272.3)
-
Step 600
600
#5D6EB5
oklch(55.7% 0.112 272.1)
-
Step 700
700
#4D5B9C
oklch(49.1% 0.105 272.8)
-
Step 800
800
#3F4B7E
oklch(42.7% 0.086 272.3)
-
Step 900
900 (this color)
#2D365C
oklch(34.4% 0.068 272.3)
-
Step 950
950
#1F253B
oklch(27% 0.042 271.7)
#2D365C 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) | #283A5E | 0.013 |
| Deuteranopia (no green cones) | #23365B | 0.014 |
| Tritanopia (no blue cones) | #1B3E44 | 0.061 |
| Achromatopsia (no color) | #383838 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D365C
#2D365C
oklch(34.4% 0.068 272.3)
- #453704
#453704
oklch(34.2% 0.067 92.1)
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 #2D365C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.039
- Marine Blue #01386A ΔE 0.045
- Gunmetal #293241 ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.051
- Midnight Green #073B4C ΔE 0.053
- Marine #042E60 ΔE 0.054
Use #2D365C 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.