#2F506C
Closest named color: Dark Grey Blue (#29465B). oklch(41.9% 0.061 245.6), rgb(47, 80, 108).
Aa
White text reads best on this color (8.45:1).
About this color
#2F506C is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.061 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.040 away. White text reads best on it, at 8.45:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #2F506C |
| RGB | rgb(47, 80, 108) |
| HSL | hsl(208, 39%, 30%) |
| OKLCH | oklch(41.9% 0.061 245.6) |
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 #2F506C | 8.45:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #2F506C | 2.48:1 | Fails | Lc 15.0 | Not readable |
| #2F506C text on white | 8.45:1 | AAA | Lc 89.0 | Fine for body text |
| #2F506C text on black | 2.48:1 | Fails | Lc -13.2 | 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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AEC4D7
oklch(81% 0.036 244.3)
-
Step 400
400
#83A5C2
oklch(70.7% 0.057 244.5)
-
Step 500
500
#648EB3
oklch(63.1% 0.073 245.9)
-
Step 600
600
#4A789F
oklch(55.6% 0.079 245.5)
-
Step 700
700
#3B6588
oklch(49.2% 0.074 245.2)
-
Step 800
800 (this color)
#2F506C
oklch(41.9% 0.061 245.6)
-
Step 900
900
#2C4459
oklch(37.6% 0.047 245.9)
-
Step 950
950
#1A2834
oklch(27% 0.03 245.1)
#2F506C 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) | #44506D | 0.027 |
| Deuteranopia (no green cones) | #3C4A6B | 0.023 |
| Tritanopia (no blue cones) | #09575A | 0.051 |
| Achromatopsia (no color) | #4D4D4D | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F506C
#2F506C
oklch(41.9% 0.061 245.6)
- #644627
#644627
oklch(42% 0.061 65.7)
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 #2F506C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.040
- YInMn Blue #415A77 ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.042
- Light Navy #155084 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.050
- Charcoal #264653 ΔE 0.050
- Deep Teal #00555A ΔE 0.050
Use #2F506C 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.