#031E4D
Closest named color: Navy Blue (#001146). oklch(25% 0.093 260.1), rgb(3, 30, 77).
Aa
White text reads best on this color (16.19:1).
About this color
#031E4D is a very dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.093 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.040 away. White text reads best on it, at 16.19:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.29:1 |
| White text | 16.19:1 |
Values
| HEX | #031E4D |
| RGB | rgb(3, 30, 77) |
| HSL | hsl(218, 93%, 16%) |
| OKLCH | oklch(25% 0.093 260.1) |
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 #031E4D | 16.19:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #031E4D | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #031E4D text on white | 16.19:1 | AAA | Lc 102.8 | Preferred for body text |
| #031E4D text on black | 1.29:1 | 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
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#669FFF
oklch(70.7% 0.154 260.3)
-
Step 500
500
#3983FF
oklch(63.1% 0.199 260.2)
-
Step 600
600
#0066F5
oklch(55.5% 0.229 260.2)
-
Step 700
700
#0056D0
oklch(49.2% 0.201 260.1)
-
Step 800
800
#0046AC
oklch(42.7% 0.175 260)
-
Step 900
900
#063B8E
oklch(37.8% 0.147 260.2)
-
Step 950
950 (this color)
#031E4D
oklch(25% 0.093 260.1)
#031E4D 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) | #00244F | 0.018 |
| Deuteranopia (no green cones) | #001D4C | 0.005 |
| Tritanopia (no blue cones) | #002A32 | 0.071 |
| Achromatopsia (no color) | #212121 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031E4D
#031E4D
oklch(25% 0.093 260.1)
- #2E1E00
#2E1E00
oklch(24.9% 0.051 80.2)
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 #031E4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.055
- Dark Indigo #1F0954 ΔE 0.057
- Marine #042E60 ΔE 0.058
- Darkblue #030764 ΔE 0.060
- Dark #1B2431 ΔE 0.066
- Night Blue #040348 ΔE 0.066
- Rich Black #0D1B2A ΔE 0.066
Use #031E4D 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.