#0C3255
Closest named color: Prussian Blue (#1D3557). oklch(31.1% 0.076 250.3), rgb(12, 50, 85).
Aa
White text reads best on this color (13.10:1).
About this color
#0C3255 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.076 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.020 away. White text reads best on it, at 13.10:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.60:1 |
| White text | 13.10:1 |
Values
| HEX | #0C3255 |
| RGB | rgb(12, 50, 85) |
| HSL | hsl(209, 75%, 19%) |
| OKLCH | oklch(31.1% 0.076 250.3) |
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 #0C3255 | 13.10:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #0C3255 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #0C3255 text on white | 13.10:1 | AAA | Lc 99.1 | Preferred for body text |
| #0C3255 text on black | 1.60:1 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DDECFB
oklch(93.6% 0.026 248.1)
-
Step 200
200
#C1DCFA
oklch(88.4% 0.051 251.1)
-
Step 300
300
#95C5F9
oklch(80.9% 0.09 251)
-
Step 400
400
#53A5F6
oklch(70.6% 0.144 250.3)
-
Step 500
500
#008CF1
oklch(63.1% 0.18 250.4)
-
Step 600
600
#0075CB
oklch(55.5% 0.159 250.4)
-
Step 700
700
#0062AC
oklch(49% 0.141 250.5)
-
Step 800
800
#00508E
oklch(42.6% 0.122 250.5)
-
Step 900
900
#004378
oklch(37.8% 0.108 250.3)
-
Step 950
950 (this color)
#0C3255
oklch(31.1% 0.076 250.3)
#0C3255 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) | #213456 | 0.023 |
| Deuteranopia (no green cones) | #162E54 | 0.014 |
| Tritanopia (no blue cones) | #003A3F | 0.055 |
| Achromatopsia (no color) | #313131 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C3255
#0C3255
oklch(31.1% 0.076 250.3)
- #462900
#462900
oklch(31% 0.068 69.2)
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 #0C3255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.020
- Marine #042E60 ΔE 0.026
- Midnight Green #073B4C ΔE 0.038
- Marine Blue #01386A ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.042
- Gunmetal #293241 ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.055
Use #0C3255 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.