#2F4160
Closest named color: Dark Grey Blue (#29465B). oklch(37.5% 0.058 260.9), rgb(47, 65, 96).
Aa
White text reads best on this color (10.26:1).
About this color
#2F4160 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.058 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.021 away. White text reads best on it, at 10.26:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.04:1 |
| White text | 10.26:1 |
Values
| HEX | #2F4160 |
| RGB | rgb(47, 65, 96) |
| HSL | hsl(218, 34%, 28%) |
| OKLCH | oklch(37.5% 0.058 260.9) |
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 #2F4160 | 10.26:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #2F4160 | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #2F4160 text on white | 10.26:1 | AAA | Lc 93.8 | Preferred for body text |
| #2F4160 text on black | 2.04:1 | Fails | Lc -8.8 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C2DE
oklch(81% 0.044 260.4)
-
Step 400
400
#88A1CD
oklch(70.6% 0.071 261.6)
-
Step 500
500
#6A8AC0
oklch(63.1% 0.09 260.6)
-
Step 600
600
#5273AC
oklch(55.6% 0.097 260.9)
-
Step 700
700
#436094
oklch(49.1% 0.091 261.4)
-
Step 800
800
#374F78
oklch(42.8% 0.075 260.7)
-
Step 900
900 (this color)
#2F4160
oklch(37.5% 0.058 260.9)
-
Step 950
950
#1C2739
oklch(27.1% 0.037 260)
#2F4160 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) | #354361 | 0.011 |
| Deuteranopia (no green cones) | #303F5F | 0.006 |
| Tritanopia (no blue cones) | #1B484C | 0.053 |
| Achromatopsia (no color) | #414141 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4160
#2F4160
oklch(37.5% 0.058 260.9)
- #513D19
#513D19
oklch(37.4% 0.059 80)
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 #2F4160, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.021
- Charcoal #264653 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.052
- Onyx #343A40 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.054
- Marine Blue #01386A ΔE 0.057
Use #2F4160 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.