#2C516E
Closest named color: Deep Sea Blue (#015482). oklch(42.1% 0.065 243.8), rgb(44, 81, 110).
Aa
White text reads best on this color (8.36:1).
About this color
#2C516E is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.065 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.038 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.50:1 |
| White text | 8.36:1 |
Values
| HEX | #2C516E |
| RGB | rgb(44, 81, 110) |
| HSL | hsl(206, 43%, 30%) |
| OKLCH | oklch(42.1% 0.065 243.8) |
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 #2C516E | 8.36:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #2C516E | 2.50:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #2C516E text on white | 8.36:1 | AAA | Lc 88.7 | Fine for body text |
| #2C516E text on black | 2.50:1 | 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
#608FB5
oklch(63.1% 0.077 243.8)
-
Step 600
600
#4579A1
oklch(55.7% 0.084 243.3)
-
Step 700
700
#37658A
oklch(49.1% 0.078 244.6)
-
Step 800
800 (this color)
#2C516E
oklch(42.1% 0.065 243.8)
-
Step 900
900
#29455A
oklch(37.8% 0.05 242.1)
-
Step 950
950
#192835
oklch(27% 0.032 245.5)
#2C516E 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) | #44516F | 0.030 |
| Deuteranopia (no green cones) | #3C4B6D | 0.025 |
| Tritanopia (no blue cones) | #00585B | 0.052 |
| Achromatopsia (no color) | #4E4E4E | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C516E
#2C516E
oklch(42.1% 0.065 243.8)
- #664525
#664525
oklch(42% 0.065 63.6)
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 #2C516E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.038
- Light Navy #155084 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.047
- Deep Teal #00555A ΔE 0.050
- Petrol #005F6A ΔE 0.050
- Dusk Blue #26538D ΔE 0.051
Use #2C516E 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.