#031C3E
Closest named color: Navy Blue (#001146). oklch(23% 0.072 256.6), rgb(3, 28, 62).
Aa
White text reads best on this color (16.94:1).
About this color
#031C3E is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.072 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.037 away. White text reads best on it, at 16.94:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.23:1 |
| White text | 16.94:1 |
Values
| HEX | #031C3E |
| RGB | rgb(3, 28, 62) |
| HSL | hsl(215, 91%, 13%) |
| OKLCH | oklch(23% 0.072 256.6) |
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 #031C3E | 16.94:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #031C3E | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #031C3E text on white | 16.94:1 | AAA | Lc 103.6 | Preferred for body text |
| #031C3E text on black | 1.23:1 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9DC3F8
oklch(80.9% 0.086 256.8)
-
Step 400
400
#66A2F5
oklch(70.7% 0.137 256.8)
-
Step 500
500
#3888F1
oklch(63.1% 0.176 256.6)
-
Step 600
600
#086FDF
oklch(55.6% 0.19 256.5)
-
Step 700
700
#005CBF
oklch(49% 0.172 256.8)
-
Step 800
800
#034C9D
oklch(42.8% 0.147 256.5)
-
Step 900
900
#10407D
oklch(37.7% 0.115 256.7)
-
Step 950
950 (this color)
#031C3E
oklch(23% 0.072 256.6)
#031C3E 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) | #081F3F | 0.012 |
| Deuteranopia (no green cones) | #001A3D | 0.008 |
| Tritanopia (no blue cones) | #00242A | 0.053 |
| Achromatopsia (no color) | #1D1D1D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031C3E
#031C3E
oklch(23% 0.072 256.6)
- #2A1900
#2A1900
oklch(23% 0.049 75)
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 #031C3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.039
- Oxford Blue #1B263B ΔE 0.049
- Dark #1B2431 ΔE 0.052
- Night Blue #040348 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.069
- Jet #212529 ΔE 0.071
- Dark Navy #000435 ΔE 0.075
Use #031C3E 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.