#2F4770
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.076 260.6), rgb(47, 71, 112).
Aa
White text reads best on this color (9.30:1).
About this color
#2F4770 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.076 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.037 away. White text reads best on it, at 9.30:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #2F4770 |
| RGB | rgb(47, 71, 112) |
| HSL | hsl(218, 41%, 31%) |
| OKLCH | oklch(39.9% 0.076 260.6) |
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 #2F4770 | 9.30:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #2F4770 | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #2F4770 text on white | 9.30:1 | AAA | Lc 91.4 | Preferred for body text |
| #2F4770 text on black | 2.25:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ACC2E6
oklch(81% 0.056 260.2)
-
Step 400
400
#80A1DA
oklch(70.6% 0.092 261.1)
-
Step 500
500
#6089D0
oklch(63.1% 0.117 260.8)
-
Step 600
600
#4672BD
oklch(55.7% 0.127 260.4)
-
Step 700
700
#385FA3
oklch(49.1% 0.118 260.7)
-
Step 800
800
#2F4E84
oklch(42.8% 0.097 260.8)
-
Step 900
900 (this color)
#2F4770
oklch(39.9% 0.076 260.6)
-
Step 950
950
#19263E
oklch(27% 0.049 262)
#2F4770 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) | #364A72 | 0.014 |
| Deuteranopia (no green cones) | #2E446F | 0.009 |
| Tritanopia (no blue cones) | #065056 | 0.068 |
| Achromatopsia (no color) | #474747 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4770
#2F4770
oklch(39.9% 0.076 260.6)
- #5C420C
#5C420C
oklch(39.8% 0.076 80.5)
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 #2F4770, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.037
- Twilight Blue #0A437A ΔE 0.039
- Light Navy #155084 ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.048
- Charcoal #264653 ΔE 0.052
- Cobalt #1E488F ΔE 0.053
- Dusk Blue #26538D ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.063
Use #2F4770 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.