#0C3259
Closest named color: Marine (#042E60). oklch(31.4% 0.081 252.6), rgb(12, 50, 89).
Aa
White text reads best on this color (12.99:1).
About this color
#0C3259 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.081 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.020 away. White text reads best on it, at 12.99:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.61:1 |
| White text | 12.99:1 |
Values
| HEX | #0C3259 |
| RGB | rgb(12, 50, 89) |
| HSL | hsl(210, 76%, 20%) |
| OKLCH | oklch(31.4% 0.081 252.6) |
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 #0C3259 | 12.99:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #0C3259 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #0C3259 text on white | 12.99:1 | AAA | Lc 98.9 | Preferred for body text |
| #0C3259 text on black | 1.61:1 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DDECFD
oklch(93.7% 0.028 251.5)
-
Step 200
200
#C1DCFC
oklch(88.5% 0.053 252.8)
-
Step 300
300
#93C5FE
oklch(80.9% 0.097 252.2)
-
Step 400
400
#52A4FD
oklch(70.8% 0.154 252.4)
-
Step 500
500
#008AF8
oklch(63.2% 0.191 252.4)
-
Step 600
600
#0073D2
oklch(55.5% 0.17 252.7)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427C
oklch(37.8% 0.114 252.4)
-
Step 950
950 (this color)
#0C3259
oklch(31.4% 0.081 252.6)
#0C3259 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) | #1F355B | 0.022 |
| Deuteranopia (no green cones) | #122E58 | 0.012 |
| Tritanopia (no blue cones) | #003B41 | 0.060 |
| Achromatopsia (no color) | #313131 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C3259
#0C3259
oklch(31.4% 0.081 252.6)
- #462B00
#462B00
oklch(31.5% 0.067 72.5)
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 #0C3259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.020
- Prussian Blue #1D3557 ΔE 0.020
- Marine Blue #01386A ΔE 0.032
- Midnight Green #073B4C ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.060
Use #0C3259 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.