#31496F
Closest named color: Dark Grey Blue (#29465B). oklch(40.4% 0.071 259.3), rgb(49, 73, 111).
Aa
White text reads best on this color (9.07:1).
About this color
#31496F is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.036 away. White text reads best on it, at 9.07:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #31496F |
| RGB | rgb(49, 73, 111) |
| HSL | hsl(217, 39%, 31%) |
| OKLCH | oklch(40.4% 0.071 259.3) |
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 #31496F | 9.07:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #31496F | 2.31:1 | Fails | Lc 13.2 | Not readable |
| #31496F text on white | 9.07:1 | AAA | Lc 90.8 | Preferred for body text |
| #31496F text on black | 2.31:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE9
oklch(88.5% 0.023 258.4)
-
Step 300
300
#B1C2DC
oklch(81% 0.041 258.8)
-
Step 400
400
#88A2CA
oklch(70.7% 0.066 258.9)
-
Step 500
500
#6A8ABD
oklch(63% 0.086 259.5)
-
Step 600
600
#5274A9
oklch(55.6% 0.092 259)
-
Step 700
700
#436191
oklch(49.1% 0.085 259.5)
-
Step 800
800 (this color)
#31496F
oklch(40.4% 0.071 259.3)
-
Step 900
900
#30425F
oklch(37.7% 0.055 259.7)
-
Step 950
950
#1C2738
oklch(27.1% 0.035 258.9)
#31496F 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) | #3A4C71 | 0.016 |
| Deuteranopia (no green cones) | #32466E | 0.009 |
| Tritanopia (no blue cones) | #105157 | 0.062 |
| Achromatopsia (no color) | #484848 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31496F
#31496F
oklch(40.4% 0.071 259.3)
- #5D4415
#5D4415
oklch(40.4% 0.071 79.7)
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 #31496F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.036
- Light Navy #155084 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.046
- Charcoal #264653 ΔE 0.051
- Dusk Blue #26538D ΔE 0.053
- Cobalt #1E488F ΔE 0.057
- YInMn Blue #415A77 ΔE 0.058
Use #31496F 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.