#2F516D
Closest named color: YInMn Blue (#415A77). oklch(42.2% 0.061 244.8), rgb(47, 81, 109).
Aa
White text reads best on this color (8.33:1).
About this color
#2F516D is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.061 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.039 away. White text reads best on it, at 8.33:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.51:1 |
| White text | 8.33:1 |
Values
| HEX | #2F516D |
| RGB | rgb(47, 81, 109) |
| HSL | hsl(207, 40%, 31%) |
| OKLCH | oklch(42.2% 0.061 244.8) |
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 #2F516D | 8.33:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #2F516D | 2.51:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #2F516D text on white | 8.33:1 | AAA | Lc 88.7 | Fine for body text |
| #2F516D text on black | 2.51:1 | Fails | Lc -13.5 | 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
#83A5C3
oklch(70.7% 0.058 245.4)
-
Step 500
500
#638EB3
oklch(63% 0.073 245.3)
-
Step 600
600
#49789F
oklch(55.6% 0.08 245)
-
Step 700
700
#3A6588
oklch(49.1% 0.074 244.7)
-
Step 800
800 (this color)
#2F516D
oklch(42.2% 0.061 244.8)
-
Step 900
900
#2B4459
oklch(37.6% 0.048 244.9)
-
Step 950
950
#1A2834
oklch(27% 0.03 245.1)
#2F516D 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) | #45516E | 0.028 |
| Deuteranopia (no green cones) | #3D4B6C | 0.023 |
| Tritanopia (no blue cones) | #07585B | 0.051 |
| Achromatopsia (no color) | #4E4E4E | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F516D
#2F516D
oklch(42.2% 0.061 244.8)
- #654628
#654628
oklch(42.2% 0.061 63.9)
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 #2F516D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.043
- Light Navy #155084 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.050
- Deep Teal #00555A ΔE 0.050
- Petrol #005F6A ΔE 0.051
Use #2F516D 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.