#031439
Closest named color: Navy Blue (#001146). oklch(20.5% 0.076 261.6), rgb(3, 20, 57).
Aa
White text reads best on this color (18.05:1).
About this color
#031439 is a very dark, moderately saturated blue. In OKLCH its lightness is 20%, its chroma 0.076 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.027 away. White text reads best on it, at 18.05:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 18.05:1 |
Values
| HEX | #031439 |
| RGB | rgb(3, 20, 57) |
| HSL | hsl(221, 90%, 12%) |
| OKLCH | oklch(20.5% 0.076 261.6) |
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 #031439 | 18.05:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #031439 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #031439 text on white | 18.05:1 | AAA | Lc 104.5 | Preferred for body text |
| #031439 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
#E0EAFC
oklch(93.5% 0.027 262.3)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#A0C1FC
oklch(80.8% 0.091 261.8)
-
Step 400
400
#6D9FFA
oklch(70.7% 0.144 261.6)
-
Step 500
500
#4684F7
oklch(63.2% 0.184 261.5)
-
Step 600
600
#286AE6
oklch(55.7% 0.2 261.5)
-
Step 700
700
#1B57C8
oklch(49.1% 0.187 261.6)
-
Step 800
800
#1948A2
oklch(42.8% 0.155 261.7)
-
Step 900
900
#1A3D80
oklch(37.6% 0.121 261.8)
-
Step 950
950 (this color)
#031439
oklch(20.5% 0.076 261.6)
#031439 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) | #00193A | 0.016 |
| Deuteranopia (no green cones) | #001438 | 0.005 |
| Tritanopia (no blue cones) | #001D24 | 0.057 |
| Achromatopsia (no color) | #161616 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031439
#031439
oklch(20.5% 0.076 261.6)
- #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 #031439, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.027
- Rich Black #0D1B2A ΔE 0.044
- Night Blue #040348 ΔE 0.047
- Dark Navy #000435 ΔE 0.049
- Very Dark Blue #000133 ΔE 0.061
- Dark Navy Blue #00022E ΔE 0.063
- Midnight #03012D ΔE 0.065
- Rich Navy #001219 ΔE 0.066
Use #031439 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.