#0C3156
Closest named color: Marine (#042E60). oklch(30.9% 0.078 252), rgb(12, 49, 86).
Aa
White text reads best on this color (13.21:1).
About this color
#0C3156 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.078 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.022 away. White text reads best on it, at 13.21:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.58:1 |
| White text | 13.21:1 |
Values
| HEX | #0C3156 |
| RGB | rgb(12, 49, 86) |
| HSL | hsl(210, 76%, 19%) |
| OKLCH | oklch(30.9% 0.078 252) |
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 #0C3156 | 13.21:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #0C3156 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #0C3156 text on white | 13.21:1 | AAA | Lc 99.3 | Preferred for body text |
| #0C3156 text on black | 1.58:1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDECFC
oklch(93.7% 0.027 249.9)
-
Step 200
200
#C1DCFB
oklch(88.5% 0.052 252)
-
Step 300
300
#95C5FB
oklch(80.9% 0.092 251.9)
-
Step 400
400
#54A4FA
oklch(70.7% 0.149 252.1)
-
Step 500
500
#008AF6
oklch(63% 0.189 252)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#004F92
oklch(42.6% 0.129 252.3)
-
Step 900
900
#00427B
oklch(37.7% 0.113 252.1)
-
Step 950
950 (this color)
#0C3156
oklch(30.9% 0.078 252)
#0C3156 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) | #1F3457 | 0.022 |
| Deuteranopia (no green cones) | #132D55 | 0.013 |
| Tritanopia (no blue cones) | #003A3F | 0.059 |
| Achromatopsia (no color) | #303030 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C3156
#0C3156
oklch(30.9% 0.078 252)
- #442A00
#442A00
oklch(31% 0.066 73.1)
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 #0C3156, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.022
- Marine Blue #01386A ΔE 0.038
- Midnight Green #073B4C ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.055
Use #0C3156 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.