#2F4866
Closest named color: Dark Grey Blue (#29465B). oklch(39.5% 0.06 253.6), rgb(47, 72, 102).
Aa
White text reads best on this color (9.37:1).
About this color
#2F4866 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.060 and its hue 254°. 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 9.37:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.23:1 |
| White text | 9.37:1 |
Values
| HEX | #2F4866 |
| RGB | rgb(47, 72, 102) |
| HSL | hsl(213, 37%, 29%) |
| OKLCH | oklch(39.5% 0.06 253.6) |
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 #2F4866 | 9.37:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #2F4866 | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #2F4866 text on white | 9.37:1 | AAA | Lc 91.6 | Preferred for body text |
| #2F4866 text on black | 2.23:1 | Fails | Lc -10.8 | 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
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#81A3CD
oklch(70.6% 0.072 254)
-
Step 500
500
#618CC0
oklch(63% 0.092 253.8)
-
Step 600
600
#4776AC
oklch(55.7% 0.099 253)
-
Step 700
700
#396394
oklch(49.2% 0.092 253.4)
-
Step 800
800
#2F5178
oklch(42.8% 0.076 253)
-
Step 900
900 (this color)
#2F4866
oklch(39.5% 0.06 253.6)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#2F4866 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) | #3C4967 | 0.018 |
| Deuteranopia (no green cones) | #354465 | 0.013 |
| Tritanopia (no blue cones) | #144F52 | 0.053 |
| Achromatopsia (no color) | #464646 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4866
#2F4866
oklch(39.5% 0.06 253.6)
- #5A411F
#5A411F
oklch(39.5% 0.06 73)
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 #2F4866, 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 0.035
- Twilight Blue #0A437A ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.052
- Light Navy #155084 ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.055
- Deep Teal #00555A ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.060
Use #2F4866 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.