#2A2C5D
Closest named color: Prussian Blue (#1D3557). oklch(31.9% 0.086 278.6), rgb(42, 44, 93).
Aa
White text reads best on this color (12.98:1).
About this color
#2A2C5D is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.086 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.034 away. White text reads best on it, at 12.98:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 12.98:1 |
Values
| HEX | #2A2C5D |
| RGB | rgb(42, 44, 93) |
| HSL | hsl(238, 38%, 26%) |
| OKLCH | oklch(31.9% 0.086 278.6) |
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 #2A2C5D | 12.98:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #2A2C5D | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #2A2C5D text on white | 12.98:1 | AAA | Lc 99.1 | Preferred for body text |
| #2A2C5D text on black | 1.61:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FE
oklch(93.5% 0.03 279.6)
-
Step 200
200
#D0D6FF
oklch(88.5% 0.057 278.6)
-
Step 300
300
#B2BBFF
oklch(81% 0.097 278.2)
-
Step 400
400
#8C94FF
oklch(70.7% 0.155 278.4)
-
Step 500
500
#7374FF
oklch(63.1% 0.202 278.6)
-
Step 600
600
#5E56F2
oklch(55.6% 0.225 278.4)
-
Step 700
700
#4F44D3
oklch(49.1% 0.21 278.7)
-
Step 800
800
#403AAA
oklch(42.8% 0.173 278.6)
-
Step 900
900
#353387
oklch(37.6% 0.136 278.7)
-
Step 950
950 (this color)
#2A2C5D
oklch(31.9% 0.086 278.6)
#2A2C5D 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) | #15335F | 0.031 |
| Deuteranopia (no green cones) | #102F5C | 0.032 |
| Tritanopia (no blue cones) | #153740 | 0.075 |
| Achromatopsia (no color) | #313131 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A2C5D
#2A2C5D
oklch(31.9% 0.086 278.6)
- #3B3300
#3B3300
oklch(32% 0.066 99.7)
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 #2A2C5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.034
- Marine #042E60 ΔE 0.040
- Marine Blue #01386A ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.050
- Gunmetal #293241 ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.062
- Midnight Blue #191970 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.068
Use #2A2C5D 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.