#0C235E
Closest named color: Marine (#042E60). oklch(28.1% 0.109 264.2), rgb(12, 35, 94).
Aa
White text reads best on this color (14.81:1).
About this color
#0C235E is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.109 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.031 away. White text reads best on it, at 14.81:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.41:1 |
| White text | 14.81:1 |
Values
| HEX | #0C235E |
| RGB | rgb(12, 35, 94) |
| HSL | hsl(223, 77%, 21%) |
| OKLCH | oklch(28.1% 0.109 264.2) |
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 #0C235E | 14.81:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #0C235E | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #0C235E text on white | 14.81:1 | AAA | Lc 101.2 | Preferred for body text |
| #0C235E text on black | 1.41:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#255FFF
oklch(55.6% 0.244 264.3)
-
Step 700
700
#0A40F4
oklch(49% 0.267 264.3)
-
Step 800
800
#0A38C5
oklch(42.8% 0.221 264.2)
-
Step 900
900
#0F349B
oklch(37.8% 0.172 264.2)
-
Step 950
950 (this color)
#0C235E
oklch(28.1% 0.109 264.2)
#0C235E 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) | #002C60 | 0.025 |
| Deuteranopia (no green cones) | #00245D | 0.010 |
| Tritanopia (no blue cones) | #00323C | 0.085 |
| Achromatopsia (no color) | #282828 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C235E
#0C235E
oklch(28.1% 0.109 264.2)
- #362600
#362600
oklch(28% 0.057 84.4)
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 #0C235E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.031
- Midnight Blue #191970 ΔE 0.040
- Darkblue #030764 ΔE 0.060
- Dark Indigo #1F0954 ΔE 0.062
- Dark Royal Blue #02066F ΔE 0.062
- Marine Blue #01386A ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.063
- Deep Blue #040273 ΔE 0.067
Use #0C235E 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.