#2D516E
Closest named color: Deep Sea Blue (#015482). oklch(42.1% 0.064 244.5), rgb(45, 81, 110).
Aa
White text reads best on this color (8.35:1).
About this color
#2D516E is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.064 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.039 away. White text reads best on it, at 8.35:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.51:1 |
| White text | 8.35:1 |
Values
| HEX | #2D516E |
| RGB | rgb(45, 81, 110) |
| HSL | hsl(207, 42%, 30%) |
| OKLCH | oklch(42.1% 0.064 244.5) |
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 #2D516E | 8.35:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #2D516E | 2.51:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #2D516E text on white | 8.35:1 | AAA | Lc 88.7 | Fine for body text |
| #2D516E 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ADC4D8
oklch(80.9% 0.038 244.5)
-
Step 400
400
#81A5C4
oklch(70.6% 0.06 244.8)
-
Step 500
500
#618FB5
oklch(63.2% 0.076 244.3)
-
Step 600
600
#4678A1
oklch(55.5% 0.084 244.9)
-
Step 700
700
#38658A
oklch(49.1% 0.078 245.1)
-
Step 800
800 (this color)
#2D516E
oklch(42.1% 0.064 244.5)
-
Step 900
900
#2A445A
oklch(37.6% 0.05 245.2)
-
Step 950
950
#192835
oklch(27% 0.032 245.5)
#2D516E 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) | #45516F | 0.030 |
| Deuteranopia (no green cones) | #3C4B6D | 0.024 |
| Tritanopia (no blue cones) | #00585B | 0.053 |
| Achromatopsia (no color) | #4E4E4E | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D516E
#2D516E
oklch(42.1% 0.064 244.5)
- #664626
#664626
oklch(42.2% 0.064 64.6)
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 #2D516E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.040
- Light Navy #155084 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.046
- Deep Teal #00555A ΔE 0.050
- Petrol #005F6A ΔE 0.051
- Dusk Blue #26538D ΔE 0.051
Use #2D516E 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.