#2A285E
Closest named color: Marine (#042E60). oklch(31.1% 0.093 281.2), rgb(42, 40, 94).
Aa
White text reads best on this color (13.43:1).
About this color
#2A285E is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.093 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.042 away. White text reads best on it, at 13.43:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.56:1 |
| White text | 13.43:1 |
Values
| HEX | #2A285E |
| RGB | rgb(42, 40, 94) |
| HSL | hsl(242, 40%, 26%) |
| OKLCH | oklch(31.1% 0.093 281.2) |
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 #2A285E | 13.43:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #2A285E | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #2A285E text on white | 13.43:1 | AAA | Lc 99.7 | Preferred for body text |
| #2A285E text on black | 1.56:1 | 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
#E6E8FF
oklch(93.6% 0.031 281.8)
-
Step 200
200
#D2D5FF
oklch(88.4% 0.058 281.9)
-
Step 300
300
#B5B9FF
oklch(80.8% 0.099 281.4)
-
Step 400
400
#9192FF
oklch(70.7% 0.157 281.2)
-
Step 500
500
#7972FF
oklch(63.2% 0.203 281.1)
-
Step 600
600
#654DFC
oklch(55.7% 0.246 281.1)
-
Step 700
700
#553BDB
oklch(49.1% 0.228 281.3)
-
Step 800
800
#4533B1
oklch(42.7% 0.189 281.3)
-
Step 900
900
#392F8C
oklch(37.7% 0.148 281.5)
-
Step 950
950 (this color)
#2A285E
oklch(31.1% 0.093 281.2)
#2A285E 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) | #0A3160 | 0.041 |
| Deuteranopia (no green cones) | #042D5D | 0.043 |
| Tritanopia (no blue cones) | #15343E | 0.081 |
| Achromatopsia (no color) | #2F2F2F | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A285E
#2A285E
oklch(31.1% 0.093 281.2)
- #383100
#383100
oklch(31.1% 0.065 100.7)
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 #2A285E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.056
- Marine Blue #01386A ΔE 0.057
- Midnight Blue #191970 ΔE 0.058
- Gunmetal #293241 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.069
- Dark Blue Grey #1F3B4D ΔE 0.072
Use #2A285E 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.