#2F415F
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.057 260.3), rgb(47, 65, 95).
Aa
White text reads best on this color (10.28:1).
About this color
#2F415F is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.057 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.020 away. White text reads best on it, at 10.28:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.04:1 |
| White text | 10.28:1 |
Values
| HEX | #2F415F |
| RGB | rgb(47, 65, 95) |
| HSL | hsl(218, 34%, 28%) |
| OKLCH | oklch(37.4% 0.057 260.3) |
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 #2F415F | 10.28:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #2F415F | 2.04:1 | Fails | Lc 10.1 | Not readable |
| #2F415F text on white | 10.28:1 | AAA | Lc 93.8 | Preferred for body text |
| #2F415F text on black | 2.04:1 | Fails | Lc -8.7 | 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 900.
-
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
#B1C2DD
oklch(81% 0.043 259.6)
-
Step 400
400
#88A2CC
oklch(70.8% 0.068 259.9)
-
Step 500
500
#6B8ABE
oklch(63.1% 0.086 260.5)
-
Step 600
600
#5273AB
oklch(55.5% 0.096 260.5)
-
Step 700
700
#436193
oklch(49.2% 0.088 260.2)
-
Step 800
800
#374F77
oklch(42.7% 0.073 260.2)
-
Step 900
900 (this color)
#2F415F
oklch(37.4% 0.057 260.3)
-
Step 950
950
#1C2738
oklch(27.1% 0.035 258.9)
#2F415F 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) | #364360 | 0.012 |
| Deuteranopia (no green cones) | #303F5E | 0.006 |
| Tritanopia (no blue cones) | #1B474C | 0.049 |
| Achromatopsia (no color) | #414141 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F415F
#2F415F
oklch(37.4% 0.057 260.3)
- #503D1B
#503D1B
oklch(37.3% 0.056 80.1)
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 #2F415F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.020
- Charcoal #264653 ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.048
- Onyx #343A40 ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.053
- Midnight Green #073B4C ΔE 0.057
Use #2F415F 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.