#143157
Closest named color: Prussian Blue (#1D3557). oklch(31.3% 0.077 256.2), rgb(20, 49, 87).
Aa
White text reads best on this color (13.07:1).
About this color
#143157 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.077 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.017 away. White text reads best on it, at 13.07:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.60:1 |
| White text | 13.07:1 |
Values
| HEX | #143157 |
| RGB | rgb(20, 49, 87) |
| HSL | hsl(214, 63%, 21%) |
| OKLCH | oklch(31.3% 0.077 256.2) |
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 #143157 | 13.07:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #143157 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #143157 text on white | 13.07:1 | AAA | Lc 99.1 | Preferred for body text |
| #143157 text on black | 1.60:1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C4DBFB
oklch(88.5% 0.051 256.7)
-
Step 300
300
#9AC3FB
oklch(80.8% 0.091 256.3)
-
Step 400
400
#60A2F9
oklch(70.7% 0.145 255.9)
-
Step 500
500
#2E87F6
oklch(63% 0.186 256.3)
-
Step 600
600
#006FDF
oklch(55.6% 0.191 256.1)
-
Step 700
700
#005DBD
oklch(49.1% 0.169 256.1)
-
Step 800
800
#004C9D
oklch(42.8% 0.147 256.2)
-
Step 900
900
#084080
oklch(37.8% 0.121 256)
-
Step 950
950 (this color)
#143157
oklch(31.3% 0.077 256.2)
#143157 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) | #1F3459 | 0.017 |
| Deuteranopia (no green cones) | #152E56 | 0.009 |
| Tritanopia (no blue cones) | #003A3F | 0.061 |
| Achromatopsia (no color) | #313131 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #143157
#143157
oklch(31.3% 0.077 256.2)
- #442C00
#442C00
oklch(31.4% 0.066 76.5)
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 #143157, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.017
- Marine #042E60 ΔE 0.023
- Marine Blue #01386A ΔE 0.037
- Midnight Green #073B4C ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.045
- Gunmetal #293241 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.056
Use #143157 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.