#0C2552
Closest named color: Marine (#042E60). oklch(27.5% 0.088 261), rgb(12, 37, 82).
Aa
White text reads best on this color (14.97:1).
About this color
#0C2552 is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.088 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.035 away. White text reads best on it, at 14.97:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.40:1 |
| White text | 14.97:1 |
Values
| HEX | #0C2552 |
| RGB | rgb(12, 37, 82) |
| HSL | hsl(219, 74%, 18%) |
| OKLCH | oklch(27.5% 0.088 261) |
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 #0C2552 | 14.97:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #0C2552 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #0C2552 text on white | 14.97:1 | AAA | Lc 101.6 | Preferred for body text |
| #0C2552 text on black | 1.40:1 | 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
#DFEBFF
oklch(93.7% 0.03 260.7)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#689FFF
oklch(70.7% 0.153 260.8)
-
Step 500
500
#3D82FF
oklch(63% 0.199 261.1)
-
Step 600
600
#0C65F7
oklch(55.6% 0.231 261)
-
Step 700
700
#0053D6
oklch(49.1% 0.213 261)
-
Step 800
800
#0545AE
oklch(42.8% 0.178 260.9)
-
Step 900
900
#0F3B8A
oklch(37.6% 0.14 261.1)
-
Step 950
950 (this color)
#0C2552
oklch(27.5% 0.088 261)
#0C2552 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) | #092A54 | 0.015 |
| Deuteranopia (no green cones) | #002451 | 0.012 |
| Tritanopia (no blue cones) | #003037 | 0.069 |
| Achromatopsia (no color) | #272727 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C2552
#0C2552
oklch(27.5% 0.088 261)
- #362400
#362400
oklch(27.5% 0.057 80.4)
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 #0C2552, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.035
- Oxford Blue #1B263B ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.061
- Midnight Blue #191970 ΔE 0.062
- Dark #1B2431 ΔE 0.063
- Navy Blue #001146 ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.067
Use #0C2552 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.