#031A3D
Closest named color: Navy Blue (#001146). oklch(22.4% 0.074 258.1), rgb(3, 26, 61).
Aa
White text reads best on this color (17.22:1).
About this color
#031A3D is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, its chroma 0.074 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.032 away. White text reads best on it, at 17.22:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.21:1 |
| White text | 17.22:1 |
Values
| HEX | #031A3D |
| RGB | rgb(3, 26, 61) |
| HSL | hsl(216, 91%, 13%) |
| OKLCH | oklch(22.4% 0.074 258.1) |
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 #031A3D | 17.22:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #031A3D | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #031A3D text on white | 17.22:1 | AAA | Lc 103.8 | Preferred for body text |
| #031A3D text on black | 1.21:1 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBFA
oklch(88.6% 0.048 258)
-
Step 300
300
#9EC3F9
oklch(81% 0.087 257.7)
-
Step 400
400
#67A1F6
oklch(70.6% 0.139 257.9)
-
Step 500
500
#3C87F3
oklch(63.2% 0.178 258)
-
Step 600
600
#146DE2
oklch(55.6% 0.195 258.2)
-
Step 700
700
#035AC4
oklch(49% 0.181 258.2)
-
Step 800
800
#0A4B9E
oklch(42.8% 0.148 257.8)
-
Step 900
900
#133F7E
oklch(37.6% 0.117 258.2)
-
Step 950
950 (this color)
#031A3D
oklch(22.4% 0.074 258.1)
#031A3D 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) | #051E3E | 0.014 |
| Deuteranopia (no green cones) | #00183C | 0.009 |
| Tritanopia (no blue cones) | #002328 | 0.057 |
| Achromatopsia (no color) | #1B1B1B | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031A3D
#031A3D
oklch(22.4% 0.074 258.1)
- #271800
#271800
oklch(22.3% 0.047 77.9)
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 #031A3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.032
- Rich Black #0D1B2A ΔE 0.039
- Oxford Blue #1B263B ΔE 0.055
- Dark #1B2431 ΔE 0.057
- Night Blue #040348 ΔE 0.059
- Dark Indigo #1F0954 ΔE 0.068
- Dark Navy #000435 ΔE 0.069
- Jet #212529 ΔE 0.075
Use #031A3D 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.