#2C4863
Closest named color: Dark Grey Blue (#29465B). oklch(39.2% 0.057 248.6), rgb(44, 72, 99).
Aa
White text reads best on this color (9.48:1).
About this color
#2C4863 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.057 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.015 away. White text reads best on it, at 9.48:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #2C4863 |
| RGB | rgb(44, 72, 99) |
| HSL | hsl(209, 38%, 28%) |
| OKLCH | oklch(39.2% 0.057 248.6) |
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 #2C4863 | 9.48:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #2C4863 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #2C4863 text on white | 9.48:1 | AAA | Lc 91.8 | Preferred for body text |
| #2C4863 text on black | 2.21:1 | Fails | Lc -10.5 | 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 900.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#ACC4DC
oklch(81% 0.043 248.4)
-
Step 400
400
#7FA5CA
oklch(70.8% 0.069 248.1)
-
Step 500
500
#5E8EBC
oklch(63.1% 0.087 248.3)
-
Step 600
600
#4377A9
oklch(55.5% 0.096 249.1)
-
Step 700
700
#356491
oklch(49.1% 0.089 249.2)
-
Step 800
800
#2C5275
oklch(42.7% 0.073 248.1)
-
Step 900
900 (this color)
#2C4863
oklch(39.2% 0.057 248.6)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#2C4863 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) | #3D4964 | 0.023 |
| Deuteranopia (no green cones) | #364362 | 0.019 |
| Tritanopia (no blue cones) | #0E4E51 | 0.049 |
| Achromatopsia (no color) | #464646 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C4863
#2C4863
oklch(39.2% 0.057 248.6)
- #5A4022
#5A4022
oklch(39.3% 0.057 68.8)
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 #2C4863, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.015
- Charcoal #264653 ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.047
- Twilight Blue #0A437A ΔE 0.053
- Deep Teal #00555A ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.055
- Dark Teal #014D4E ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.056
Use #2C4863 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.