#031E34
Closest named color: Rich Black (#0D1B2A). oklch(22.8% 0.054 246.6), rgb(3, 30, 52).
Aa
White text reads best on this color (16.94:1).
About this color
#031E34 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.054 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.021 away. White text reads best on it, at 16.94:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 16.94:1 |
Values
| HEX | #031E34 |
| RGB | rgb(3, 30, 52) |
| HSL | hsl(207, 89%, 11%) |
| OKLCH | oklch(22.8% 0.054 246.6) |
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 #031E34 | 16.94:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #031E34 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #031E34 text on white | 16.94:1 | AAA | Lc 103.7 | Preferred for body text |
| #031E34 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#A0C5E8
oklch(80.9% 0.064 247.2)
-
Step 400
400
#69A7DD
oklch(70.8% 0.102 246.2)
-
Step 500
500
#3B8FD3
oklch(63% 0.13 246.5)
-
Step 600
600
#0978C1
oklch(55.6% 0.142 246.7)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#045287
oklch(42.6% 0.11 247)
-
Step 900
900
#12456C
oklch(37.8% 0.085 246.2)
-
Step 950
950 (this color)
#031E34
oklch(22.8% 0.054 246.6)
#031E34 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) | #141F35 | 0.021 |
| Deuteranopia (no green cones) | #0C1A34 | 0.016 |
| Tritanopia (no blue cones) | #002326 | 0.037 |
| Achromatopsia (no color) | #1D1D1D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031E34
#031E34
oklch(22.8% 0.054 246.6)
- #2C1700
#2C1700
oklch(22.9% 0.051 66.9)
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 #031E34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.021
- Dark #1B2431 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.045
- Navy Blue #001146 ΔE 0.055
- Jet #212529 ΔE 0.056
- Rich Navy #001219 ΔE 0.065
- Night Blue #040348 ΔE 0.081
- Space Cadet #2B2D42 ΔE 0.083
Use #031E34 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.