#2A2C5B
Closest named color: Prussian Blue (#1D3557). oklch(31.8% 0.082 278.8), rgb(42, 44, 91).
Aa
White text reads best on this color (13.04:1).
About this color
#2A2C5B is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.082 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.033 away. White text reads best on it, at 13.04:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.60:1 |
| White text | 13.04:1 |
Values
| HEX | #2A2C5B |
| RGB | rgb(42, 44, 91) |
| HSL | hsl(238, 37%, 26%) |
| OKLCH | oklch(31.8% 0.082 278.8) |
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 #2A2C5B | 13.04:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #2A2C5B | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #2A2C5B text on white | 13.04:1 | AAA | Lc 99.2 | Preferred for body text |
| #2A2C5B text on black | 1.60:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E8FD
oklch(93.5% 0.029 279.4)
-
Step 200
200
#D1D6FD
oklch(88.5% 0.054 279.5)
-
Step 300
300
#B2BBFF
oklch(81% 0.097 278.2)
-
Step 400
400
#8D94FF
oklch(70.8% 0.155 278.8)
-
Step 500
500
#7474FE
oklch(63.1% 0.2 279)
-
Step 600
600
#5F58ED
oklch(55.6% 0.217 278.8)
-
Step 700
700
#4F46CE
oklch(49% 0.202 278.8)
-
Step 800
800
#403BA7
oklch(42.7% 0.168 278.6)
-
Step 900
900
#363484
oklch(37.7% 0.13 279.2)
-
Step 950
950 (this color)
#2A2C5B
oklch(31.8% 0.082 278.8)
#2A2C5B 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) | #17335D | 0.030 |
| Deuteranopia (no green cones) | #132F5A | 0.030 |
| Tritanopia (no blue cones) | #17363F | 0.071 |
| Achromatopsia (no color) | #313131 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A2C5B
#2A2C5B
oklch(31.8% 0.082 278.8)
- #3B3200
#3B3200
oklch(31.7% 0.066 98.2)
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 #2A2C5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.033
- Marine #042E60 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.046
- Marine Blue #01386A ΔE 0.051
- Gunmetal #293241 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.060
- Oxford Blue #1B263B ΔE 0.065
- Midnight Green #073B4C ΔE 0.067
Use #2A2C5B 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.