#2D334F
Closest named color: Prussian Blue (#1D3557). oklch(32.9% 0.05 274.1), rgb(45, 51, 79).
Aa
White text reads best on this color (12.36:1).
About this color
#2D334F is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.050 and its hue 274°. 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 12.36:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.69:1 |
| White text | 12.36:1 |
Values
| HEX | #2D334F |
| RGB | rgb(45, 51, 79) |
| HSL | hsl(229, 27%, 24%) |
| OKLCH | oklch(32.9% 0.05 274.1) |
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 #2D334F | 12.36:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #2D334F | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #2D334F text on white | 12.36:1 | AAA | Lc 98.1 | Preferred for body text |
| #2D334F text on black | 1.69:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D4D8E7
oklch(88.4% 0.021 274)
-
Step 300
300
#B9BFDA
oklch(80.9% 0.039 275.6)
-
Step 400
400
#949EC7
oklch(70.6% 0.061 274.1)
-
Step 500
500
#7B86B9
oklch(63.1% 0.078 274.6)
-
Step 600
600
#646FA5
oklch(55.5% 0.085 274.5)
-
Step 700
700
#535D8D
oklch(49.1% 0.078 274.2)
-
Step 800
800
#444C73
oklch(42.7% 0.066 274.4)
-
Step 900
900 (this color)
#2D334F
oklch(32.9% 0.05 274.1)
-
Step 950
950
#212536
oklch(26.9% 0.032 273.8)
#2D334F 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) | #2A3650 | 0.010 |
| Deuteranopia (no green cones) | #27334E | 0.009 |
| Tritanopia (no blue cones) | #23393D | 0.046 |
| Achromatopsia (no color) | #343434 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D334F
#2D334F
oklch(32.9% 0.05 274.1)
- #3E3514
#3E3514
oklch(33.1% 0.051 94.2)
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 #2D334F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.024
- Gunmetal #293241 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.031
- Onyx #343A40 ΔE 0.042
- Midnight Green #073B4C ΔE 0.045
- Marine #042E60 ΔE 0.058
- Marine Blue #01386A ΔE 0.059
Use #2D334F 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.