#143052
Closest named color: Prussian Blue (#1D3557). oklch(30.7% 0.07 254.7), rgb(20, 48, 82).
Aa
White text reads best on this color (13.33:1).
About this color
#143052 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.070 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.021 away. White text reads best on it, at 13.33:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.57:1 |
| White text | 13.33:1 |
Values
| HEX | #143052 |
| RGB | rgb(20, 48, 82) |
| HSL | hsl(213, 61%, 20%) |
| OKLCH | oklch(30.7% 0.07 254.7) |
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 #143052 | 13.33:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #143052 | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #143052 text on white | 13.33:1 | AAA | Lc 99.5 | Preferred for body text |
| #143052 text on black | 1.57:1 | 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
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C5DBF8
oklch(88.4% 0.047 255.4)
-
Step 300
300
#9CC4F6
oklch(80.9% 0.083 254.3)
-
Step 400
400
#64A3F2
oklch(70.7% 0.134 254.9)
-
Step 500
500
#348AED
oklch(63.2% 0.17 254.6)
-
Step 600
600
#0071D9
oklch(55.6% 0.181 254.6)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D98
oklch(42.6% 0.139 254.8)
-
Step 900
900
#0D417B
oklch(37.7% 0.112 254.9)
-
Step 950
950 (this color)
#143052
oklch(30.7% 0.07 254.7)
#143052 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) | #213253 | 0.017 |
| Deuteranopia (no green cones) | #172D51 | 0.009 |
| Tritanopia (no blue cones) | #00383D | 0.055 |
| Achromatopsia (no color) | #2F2F2F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #143052
#143052
oklch(30.7% 0.07 254.7)
- #422A00
#422A00
oklch(30.7% 0.065 75.5)
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 #143052, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.021
- Marine #042E60 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.039
- Midnight Green #073B4C ΔE 0.041
- Gunmetal #293241 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.043
- Marine Blue #01386A ΔE 0.045
- Oxford Blue #1B263B ΔE 0.047
Use #143052 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.