#142E51
Closest named color: Prussian Blue (#1D3557). oklch(30.1% 0.071 256.6), rgb(20, 46, 81).
Aa
White text reads best on this color (13.64:1).
About this color
#142E51 is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.071 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.027 away. White text reads best on it, at 13.64:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.53:1 |
| White text | 13.64:1 |
Values
| HEX | #142E51 |
| RGB | rgb(20, 46, 81) |
| HSL | hsl(214, 60%, 20%) |
| OKLCH | oklch(30.1% 0.071 256.6) |
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 #142E51 | 13.64:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #142E51 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #142E51 text on white | 13.64:1 | AAA | Lc 100.0 | Preferred for body text |
| #142E51 text on black | 1.53:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBF9
oklch(88.5% 0.047 257.3)
-
Step 300
300
#9DC3F7
oklch(80.8% 0.085 256.3)
-
Step 400
400
#67A2F3
oklch(70.7% 0.135 256.6)
-
Step 500
500
#3A88EF
oklch(63.1% 0.173 256.7)
-
Step 600
600
#0D6FDE
oklch(55.6% 0.188 256.6)
-
Step 700
700
#005DBF
oklch(49.2% 0.171 256.5)
-
Step 800
800
#054C9C
oklch(42.7% 0.145 256.5)
-
Step 900
900
#11407C
oklch(37.7% 0.113 256.7)
-
Step 950
950 (this color)
#142E51
oklch(30.1% 0.071 256.6)
#142E51 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) | #1E3152 | 0.016 |
| Deuteranopia (no green cones) | #152B50 | 0.009 |
| Tritanopia (no blue cones) | #00363B | 0.057 |
| Achromatopsia (no color) | #2E2E2E | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #142E51
#142E51
oklch(30.1% 0.071 256.6)
- #402900
#402900
oklch(30.2% 0.063 76.2)
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 #142E51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.027
- Marine #042E60 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.043
- Gunmetal #293241 ΔE 0.044
- Midnight Green #073B4C ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.049
- Marine Blue #01386A ΔE 0.050
Use #142E51 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.