#2A2F56
Closest named color: Prussian Blue (#1D3557). oklch(32.1% 0.069 276.2), rgb(42, 47, 86).
Aa
White text reads best on this color (12.80:1).
About this color
#2A2F56 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.069 and its hue 276°. 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 12.80:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.63:1 |
| White text | 12.80:1 |
Values
| HEX | #2A2F56 |
| RGB | rgb(42, 47, 86) |
| HSL | hsl(233, 34%, 25%) |
| OKLCH | oklch(32.1% 0.069 276.2) |
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 #2A2F56 | 12.80:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #2A2F56 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #2A2F56 text on white | 12.80:1 | AAA | Lc 98.8 | Preferred for body text |
| #2A2F56 text on black | 1.63:1 | 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 950.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B2BDF6
oklch(81% 0.082 275.9)
-
Step 400
400
#8B98F2
oklch(70.7% 0.132 276.2)
-
Step 500
500
#717CED
oklch(63.2% 0.168 276.3)
-
Step 600
600
#5B62DB
oklch(55.7% 0.182 276.3)
-
Step 700
700
#4B50BE
oklch(49.1% 0.169 276.2)
-
Step 800
800
#3D429A
oklch(42.7% 0.141 276.2)
-
Step 900
900
#34397A
oklch(37.7% 0.109 276.5)
-
Step 950
950 (this color)
#2A2F56
oklch(32.1% 0.069 276.2)
#2A2F56 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) | #203457 | 0.019 |
| Deuteranopia (no green cones) | #1C3055 | 0.020 |
| Tritanopia (no blue cones) | #1A373E | 0.061 |
| Achromatopsia (no color) | #323232 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A2F56
#2A2F56
oklch(32.1% 0.069 276.2)
- #3D3300
#3D3300
oklch(32.2% 0.066 97.1)
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 #2A2F56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.036
- Gunmetal #293241 ΔE 0.042
- Marine #042E60 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.047
- Marine Blue #01386A ΔE 0.051
- Midnight Green #073B4C ΔE 0.056
- Oxford Blue #1B263B ΔE 0.060
Use #2A2F56 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.