#2A3454
Closest named color: Prussian Blue (#1D3557). oklch(33.2% 0.058 269.8), rgb(42, 52, 84).
Aa
White text reads best on this color (12.22:1).
About this color
#2A3454 is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.058 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.017 away. White text reads best on it, at 12.22:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.71:1 |
| White text | 12.22:1 |
Values
| HEX | #2A3454 |
| RGB | rgb(42, 52, 84) |
| HSL | hsl(226, 33%, 25%) |
| OKLCH | oklch(33.2% 0.058 269.8) |
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 #2A3454 | 12.22:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #2A3454 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #2A3454 text on white | 12.22:1 | AAA | Lc 97.8 | Preferred for body text |
| #2A3454 text on black | 1.71:1 | 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
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300
#B5C0DE
oklch(80.9% 0.044 269.5)
-
Step 400
400
#8F9FCD
oklch(70.7% 0.07 269.7)
-
Step 500
500
#7487C0
oklch(63.1% 0.089 269.6)
-
Step 600
600
#5D70AD
oklch(55.7% 0.098 269.9)
-
Step 700
700
#4D5D94
oklch(49% 0.091 270.5)
-
Step 800
800
#3F4C78
oklch(42.6% 0.075 270.5)
-
Step 900
900 (this color)
#2A3454
oklch(33.2% 0.058 269.8)
-
Step 950
950
#1F2639
oklch(27.1% 0.037 268.4)
#2A3454 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) | #283755 | 0.009 |
| Deuteranopia (no green cones) | #243453 | 0.009 |
| Tritanopia (no blue cones) | #1A3B40 | 0.053 |
| Achromatopsia (no color) | #353535 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A3454
#2A3454
oklch(33.2% 0.058 269.8)
- #42340C
#42340C
oklch(33.2% 0.059 89)
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 #2A3454, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.031
- Gunmetal #293241 ΔE 0.034
- Space Cadet #2B2D42 ΔE 0.035
- Midnight Green #073B4C ΔE 0.044
- Onyx #343A40 ΔE 0.048
- Marine Blue #01386A ΔE 0.050
- Marine #042E60 ΔE 0.051
Use #2A3454 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.