#142F7D
Closest named color: Marine Blue (#01386A). oklch(34% 0.136 265.1), rgb(20, 47, 125).
Aa
White text reads best on this color (12.12:1).
About this color
#142F7D is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.136 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.044 away. White text reads best on it, at 12.12:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.73:1 |
| White text | 12.12:1 |
Values
| HEX | #142F7D |
| RGB | rgb(20, 47, 125) |
| HSL | hsl(225, 72%, 28%) |
| OKLCH | oklch(34% 0.136 265.1) |
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 #142F7D | 12.12:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #142F7D | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #142F7D text on white | 12.12:1 | AAA | Lc 97.1 | Preferred for body text |
| #142F7D text on black | 1.73:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#729CFF
oklch(70.6% 0.153 265.4)
-
Step 500
500
#4D7FFF
oklch(63% 0.198 265.1)
-
Step 600
600
#3062F5
oklch(55.6% 0.227 265.1)
-
Step 700
700
#2450D6
oklch(49.2% 0.211 265.1)
-
Step 800
800
#1E42AD
oklch(42.6% 0.176 265.2)
-
Step 900
900 (this color)
#142F7D
oklch(34% 0.136 265.1)
-
Step 950
950
#112350
oklch(27.1% 0.086 264.8)
#142F7D 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) | #003B80 | 0.032 |
| Deuteranopia (no green cones) | #00317C | 0.013 |
| Tritanopia (no blue cones) | #004351 | 0.106 |
| Achromatopsia (no color) | #363636 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #142F7D
#142F7D
oklch(34% 0.136 265.1)
- #483400
#483400
oklch(33.9% 0.069 84.8)
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 #142F7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.044
- Marine #042E60 ΔE 0.053
- Midnight Blue #191970 ΔE 0.056
- Twilight Blue #0A437A ΔE 0.056
- Royal #0C1793 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.071
- Cobalt #1E488F ΔE 0.075
- Dark Blue #00008B ΔE 0.082
Use #142F7D 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.