#0C2144
Closest named color: Oxford Blue (#1B263B). oklch(25.3% 0.071 260), rgb(12, 33, 68).
Aa
White text reads best on this color (15.94:1).
About this color
#0C2144 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.071 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.033 away. White text reads best on it, at 15.94:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.31:1 |
| White text | 15.94:1 |
Values
| HEX | #0C2144 |
| RGB | rgb(12, 33, 68) |
| HSL | hsl(218, 70%, 16%) |
| OKLCH | oklch(25.3% 0.071 260) |
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 #0C2144 | 15.94:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #0C2144 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #0C2144 text on white | 15.94:1 | AAA | Lc 102.7 | Preferred for body text |
| #0C2144 text on black | 1.31:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFB
oklch(93.7% 0.024 259.8)
-
Step 200
200
#C7DAF9
oklch(88.4% 0.048 260.2)
-
Step 300
300
#A1C2F8
oklch(80.9% 0.085 260.1)
-
Step 400
400
#6DA0F4
oklch(70.6% 0.135 260)
-
Step 500
500
#4686F0
oklch(63.1% 0.172 259.9)
-
Step 600
600
#276DDF
oklch(55.7% 0.188 260)
-
Step 700
700
#1A5AC1
oklch(49.1% 0.174 260)
-
Step 800
800
#184A9C
oklch(42.7% 0.144 260)
-
Step 900
900
#1A3F7C
oklch(37.7% 0.112 259.9)
-
Step 950
950 (this color)
#0C2144
oklch(25.3% 0.071 260)
#0C2144 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) | #0F2545 | 0.014 |
| Deuteranopia (no green cones) | #041F43 | 0.011 |
| Tritanopia (no blue cones) | #00292F | 0.055 |
| Achromatopsia (no color) | #222222 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C2144
#0C2144
oklch(25.3% 0.071 260)
- #2F1F00
#2F1F00
oklch(25.3% 0.052 80.8)
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 #0C2144, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.033
- Dark #1B2431 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.051
- Navy Blue #001146 ΔE 0.053
- Marine #042E60 ΔE 0.061
- Jet #212529 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.067
Use #0C2144 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.