#2F4969
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.063 254.2), rgb(47, 73, 105).
Aa
White text reads best on this color (9.21:1).
About this color
#2F4969 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.063 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 9.21:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.27:1 |
| White text | 9.21:1 |
Values
| HEX | #2F4969 |
| RGB | rgb(47, 73, 105) |
| HSL | hsl(213, 38%, 30%) |
| OKLCH | oklch(40% 0.063 254.2) |
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 #2F4969 | 9.21:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #2F4969 | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #2F4969 text on white | 9.21:1 | AAA | Lc 91.2 | Preferred for body text |
| #2F4969 text on black | 2.27:1 | Fails | Lc -11.2 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#ACC3DF
oklch(80.9% 0.047 253.5)
-
Step 400
400
#80A3CF
oklch(70.6% 0.076 254.4)
-
Step 500
500
#5F8CC3
oklch(63.1% 0.097 254.1)
-
Step 600
600
#4575B0
oklch(55.5% 0.106 254.5)
-
Step 700
700
#376297
oklch(49.1% 0.098 254.6)
-
Step 800
800
#2E507A
oklch(42.6% 0.081 254.6)
-
Step 900
900 (this color)
#2F4969
oklch(40% 0.063 254.2)
-
Step 950
950
#18273A
oklch(26.9% 0.041 254.8)
#2F4969 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) | #3C4B6A | 0.019 |
| Deuteranopia (no green cones) | #354568 | 0.013 |
| Tritanopia (no blue cones) | #105054 | 0.056 |
| Achromatopsia (no color) | #474747 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4969
#2F4969
oklch(40% 0.063 254.2)
- #5C421D
#5C421D
oklch(40% 0.064 73.8)
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 #2F4969, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.040
- Light Navy #155084 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.054
- Deep Teal #00555A ΔE 0.060
- YInMn Blue #415A77 ΔE 0.061
Use #2F4969 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.