#2F4E71
Closest named color: Light Navy (#155084). oklch(41.6% 0.07 252.5), rgb(47, 78, 113).
Aa
White text reads best on this color (8.57:1).
About this color
#2F4E71 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.070 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.036 away. White text reads best on it, at 8.57:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #2F4E71 |
| RGB | rgb(47, 78, 113) |
| HSL | hsl(212, 41%, 31%) |
| OKLCH | oklch(41.6% 0.07 252.5) |
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 #2F4E71 | 8.57:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #2F4E71 | 2.44:1 | Fails | Lc 14.6 | Not readable |
| #2F4E71 text on white | 8.57:1 | AAA | Lc 89.3 | Fine for body text |
| #2F4E71 text on black | 2.44:1 | Fails | Lc -12.9 | 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
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AEC3DB
oklch(80.9% 0.041 251.8)
-
Step 400
400
#84A4C9
oklch(70.8% 0.065 252.4)
-
Step 500
500
#648DBB
oklch(63.2% 0.083 252)
-
Step 600
600
#4B76A7
oklch(55.6% 0.091 252.6)
-
Step 700
700
#3C638F
oklch(49.1% 0.084 252.5)
-
Step 800
800 (this color)
#2F4E71
oklch(41.6% 0.07 252.5)
-
Step 900
900
#2C435E
oklch(37.7% 0.055 253.1)
-
Step 950
950
#1A2737
oklch(26.9% 0.035 254.1)
#2F4E71 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) | #405073 | 0.023 |
| Deuteranopia (no green cones) | #374970 | 0.017 |
| Tritanopia (no blue cones) | #01565A | 0.061 |
| Achromatopsia (no color) | #4C4C4C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4E71
#2F4E71
oklch(41.6% 0.07 252.5)
- #63451C
#63451C
oklch(41.5% 0.07 72.1)
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 #2F4E71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.036
- Deep Sea Blue #015482 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.042
- YInMn Blue #415A77 ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.047
- Twilight Blue #0A437A ΔE 0.053
- Dusk #4E5481 ΔE 0.054
Use #2F4E71 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.