#0B2856
Closest named color: Marine (#042E60). oklch(28.6% 0.09 259.5), rgb(11, 40, 86).
Aa
White text reads best on this color (14.46:1).
About this color
#0B2856 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.090 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.024 away. White text reads best on it, at 14.46:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.45:1 |
| White text | 14.46:1 |
Values
| HEX | #0B2856 |
| RGB | rgb(11, 40, 86) |
| HSL | hsl(217, 77%, 19%) |
| OKLCH | oklch(28.6% 0.09 259.5) |
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 #0B2856 | 14.46:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #0B2856 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #0B2856 text on white | 14.46:1 | AAA | Lc 100.9 | Preferred for body text |
| #0B2856 text on black | 1.45:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C4DBFF
oklch(88.6% 0.056 259.3)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3684FF
oklch(63.2% 0.199 259.4)
-
Step 600
600
#0068F1
oklch(55.5% 0.221 259.6)
-
Step 700
700
#0057CC
oklch(49% 0.195 259.5)
-
Step 800
800
#0047A9
oklch(42.7% 0.169 259.5)
-
Step 900
900
#053C8B
oklch(37.7% 0.142 259.3)
-
Step 950
950 (this color)
#0B2856
oklch(28.6% 0.09 259.5)
#0B2856 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) | #0C2D58 | 0.016 |
| Deuteranopia (no green cones) | #002655 | 0.012 |
| Tritanopia (no blue cones) | #00333A | 0.070 |
| Achromatopsia (no color) | #292929 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2856
#0B2856
oklch(28.6% 0.09 259.5)
- #3A2600
#3A2600
oklch(28.6% 0.059 78.6)
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 #0B2856, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.051
- Marine Blue #01386A ΔE 0.056
- Midnight Blue #191970 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Gunmetal #293241 ΔE 0.068
- Dark #1B2431 ΔE 0.068
Use #0B2856 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.