#031C47
Closest named color: Navy Blue (#001146). oklch(23.9% 0.087 259.9), rgb(3, 28, 71).
Aa
White text reads best on this color (16.65:1).
About this color
#031C47 is a very dark, moderately saturated blue. In OKLCH its lightness is 24%, its chroma 0.087 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.033 away. White text reads best on it, at 16.65:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.26:1 |
| White text | 16.65:1 |
Values
| HEX | #031C47 |
| RGB | rgb(3, 28, 71) |
| HSL | hsl(218, 92%, 15%) |
| OKLCH | oklch(23.9% 0.087 259.9) |
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 #031C47 | 16.65:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #031C47 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #031C47 text on white | 16.65:1 | AAA | Lc 103.2 | Preferred for body text |
| #031C47 text on black | 1.26:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFE
oklch(93.6% 0.029 257.8)
-
Step 200
200
#C4DBFF
oklch(88.6% 0.056 259.3)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#659FFF
oklch(70.6% 0.154 260)
-
Step 500
500
#3883FF
oklch(63% 0.199 260)
-
Step 600
600
#0067F3
oklch(55.5% 0.225 259.9)
-
Step 700
700
#0056CE
oklch(49% 0.199 259.9)
-
Step 800
800
#0046AB
oklch(42.6% 0.173 259.9)
-
Step 900
900
#0C3C88
oklch(37.6% 0.137 260)
-
Step 950
950 (this color)
#031C47
oklch(23.9% 0.087 259.9)
#031C47 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) | #002149 | 0.015 |
| Deuteranopia (no green cones) | #001B46 | 0.006 |
| Tritanopia (no blue cones) | #00272E | 0.067 |
| Achromatopsia (no color) | #1E1E1E | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031C47
#031C47
oklch(23.9% 0.087 259.9)
- #2B1C00
#2B1C00
oklch(23.9% 0.049 80.6)
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 #031C47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.054
- Rich Black #0D1B2A ΔE 0.056
- Dark Indigo #1F0954 ΔE 0.058
- Night Blue #040348 ΔE 0.060
- Dark #1B2431 ΔE 0.062
- Darkblue #030764 ΔE 0.065
- Marine #042E60 ΔE 0.069
Use #031C47 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.