#2F496E
Closest named color: Dark Grey Blue (#29465B). oklch(40.2% 0.07 257.3), rgb(47, 73, 110).
Aa
White text reads best on this color (9.13:1).
About this color
#2F496E is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.070 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #2F496E |
| RGB | rgb(47, 73, 110) |
| HSL | hsl(215, 40%, 31%) |
| OKLCH | oklch(40.2% 0.07 257.3) |
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 #2F496E | 9.13:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #2F496E | 2.29:1 | Fails | Lc 13.1 | Not readable |
| #2F496E text on white | 9.13:1 | AAA | Lc 90.9 | Preferred for body text |
| #2F496E text on black | 2.29:1 | Fails | Lc -11.4 | 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
#B0C2DC
oklch(80.9% 0.042 257.5)
-
Step 400
400
#87A2CA
oklch(70.6% 0.066 258.1)
-
Step 500
500
#698BBC
oklch(63.1% 0.084 257.5)
-
Step 600
600
#5074A8
oklch(55.5% 0.091 257.5)
-
Step 700
700
#416291
oklch(49.2% 0.085 257.3)
-
Step 800
800 (this color)
#2F496E
oklch(40.2% 0.07 257.3)
-
Step 900
900
#2F425F
oklch(37.7% 0.056 258.6)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#2F496E 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) | #3A4B70 | 0.017 |
| Deuteranopia (no green cones) | #32456D | 0.012 |
| Tritanopia (no blue cones) | #095156 | 0.063 |
| Achromatopsia (no color) | #484848 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F496E
#2F496E
oklch(40.2% 0.07 257.3)
- #5D4316
#5D4316
oklch(40.2% 0.07 77.8)
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 #2F496E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Light Navy #155084 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.046
- Charcoal #264653 ΔE 0.048
- Dusk Blue #26538D ΔE 0.054
- Cobalt #1E488F ΔE 0.058
- YInMn Blue #415A77 ΔE 0.059
Use #2F496E 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.