#03143B
Closest named color: Navy Blue (#001146). oklch(20.7% 0.079 262.1), rgb(3, 20, 59).
Aa
White text reads best on this color (17.99:1).
About this color
#03143B is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.079 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.023 away. White text reads best on it, at 17.99:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 17.99:1 |
Values
| HEX | #03143B |
| RGB | rgb(3, 20, 59) |
| HSL | hsl(222, 90%, 12%) |
| OKLCH | oklch(20.7% 0.079 262.1) |
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 #03143B | 17.99:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #03143B | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #03143B text on white | 17.99:1 | AAA | Lc 104.4 | Preferred for body text |
| #03143B text on black | 1.16:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A0C1FE
oklch(80.9% 0.094 262.4)
-
Step 400
400
#6C9EFE
oklch(70.7% 0.151 262.4)
-
Step 500
500
#4582FC
oklch(63.1% 0.193 262.3)
-
Step 600
600
#2668EB
oklch(55.6% 0.209 262)
-
Step 700
700
#1A55CC
oklch(49% 0.194 262.2)
-
Step 800
800
#1847A5
oklch(42.8% 0.16 262.1)
-
Step 900
900
#193D83
oklch(37.8% 0.125 261.9)
-
Step 950
950 (this color)
#03143B
oklch(20.7% 0.079 262.1)
#03143B 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) | #00193C | 0.015 |
| Deuteranopia (no green cones) | #00143A | 0.005 |
| Tritanopia (no blue cones) | #001E25 | 0.061 |
| Achromatopsia (no color) | #171717 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03143B
#03143B
oklch(20.7% 0.079 262.1)
- #211500
#211500
oklch(20.6% 0.042 81.7)
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 #03143B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.023
- Night Blue #040348 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.046
- Dark Navy #000435 ΔE 0.050
- Very Dark Blue #000133 ΔE 0.062
- Dark Navy Blue #00022E ΔE 0.065
- Midnight #03012D ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.067
Use #03143B 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.