#2F4E6E
Closest named color: Dark Grey Blue (#29465B). oklch(41.5% 0.065 250.4), rgb(47, 78, 110).
Aa
White text reads best on this color (8.62:1).
About this color
#2F4E6E is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.065 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.038 away. White text reads best on it, at 8.62:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #2F4E6E |
| RGB | rgb(47, 78, 110) |
| HSL | hsl(210, 40%, 31%) |
| OKLCH | oklch(41.5% 0.065 250.4) |
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 #2F4E6E | 8.62:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #2F4E6E | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #2F4E6E text on white | 8.62:1 | AAA | Lc 89.5 | Fine for body text |
| #2F4E6E text on black | 2.43:1 | Fails | Lc -12.7 | 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
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300
#AFC3D9
oklch(80.9% 0.038 250.8)
-
Step 400
400
#84A4C6
oklch(70.7% 0.061 250.2)
-
Step 500
500
#658DB7
oklch(63.1% 0.078 250.3)
-
Step 600
600
#4C77A3
oklch(55.7% 0.084 250.1)
-
Step 700
700
#3C648C
oklch(49.2% 0.079 249.7)
-
Step 800
800 (this color)
#2F4E6E
oklch(41.5% 0.065 250.4)
-
Step 900
900
#2C445C
oklch(37.8% 0.051 249.3)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#2F4E6E 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) | #414F6F | 0.024 |
| Deuteranopia (no green cones) | #39496D | 0.018 |
| Tritanopia (no blue cones) | #065559 | 0.056 |
| Achromatopsia (no color) | #4C4C4C | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4E6E
#2F4E6E
oklch(41.5% 0.065 250.4)
- #624521
#624521
oklch(41.4% 0.065 70.2)
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 #2F4E6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.038
- Light Navy #155084 ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.050
- Charcoal #264653 ΔE 0.050
- Dusk Blue #26538D ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.055
Use #2F4E6E 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.