#2D345B
Closest named color: Prussian Blue (#1D3557). oklch(33.9% 0.069 274.4), rgb(45, 52, 91).
Aa
White text reads best on this color (11.97:1).
About this color
#2D345B is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.069 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.023 away. White text reads best on it, at 11.97:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.75:1 |
| White text | 11.97:1 |
Values
| HEX | #2D345B |
| RGB | rgb(45, 52, 91) |
| HSL | hsl(231, 34%, 27%) |
| OKLCH | oklch(33.9% 0.069 274.4) |
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 #2D345B | 11.97:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #2D345B | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #2D345B text on white | 11.97:1 | AAA | Lc 97.3 | Preferred for body text |
| #2D345B text on black | 1.75:1 | 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
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B6BFE3
oklch(81% 0.052 274.2)
-
Step 400
400
#919DD5
oklch(70.7% 0.083 274.7)
-
Step 500
500
#7684C9
oklch(63.1% 0.105 274.3)
-
Step 600
600
#5F6DB6
oklch(55.7% 0.114 273.9)
-
Step 700
700
#4F5A9D
oklch(49.1% 0.108 274.7)
-
Step 800
800
#414A7F
oklch(42.7% 0.088 274.8)
-
Step 900
900 (this color)
#2D345B
oklch(33.9% 0.069 274.4)
-
Step 950
950
#20253C
oklch(27.1% 0.043 273.8)
#2D345B 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) | #25395D | 0.017 |
| Deuteranopia (no green cones) | #21355A | 0.017 |
| Tritanopia (no blue cones) | #1C3C43 | 0.061 |
| Achromatopsia (no color) | #373737 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D345B
#2D345B
oklch(33.9% 0.069 274.4)
- #433701
#433701
oklch(34% 0.069 95.2)
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 #2D345B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.042
- Marine Blue #01386A ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.046
- Gunmetal #293241 ΔE 0.047
- Marine #042E60 ΔE 0.051
- Midnight Green #073B4C ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.057
Use #2D345B 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.