#0C2145
Closest named color: Oxford Blue (#1B263B). oklch(25.4% 0.073 260.4), rgb(12, 33, 69).
Aa
White text reads best on this color (15.91:1).
About this color
#0C2145 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.073 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.034 away. White text reads best on it, at 15.91:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.31:1 |
| White text | 15.91:1 |
Values
| HEX | #0C2145 |
| RGB | rgb(12, 33, 69) |
| HSL | hsl(218, 70%, 16%) |
| OKLCH | oklch(25.4% 0.073 260.4) |
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 #0C2145 | 15.91:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #0C2145 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #0C2145 text on white | 15.91:1 | AAA | Lc 102.7 | Preferred for body text |
| #0C2145 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DAFA
oklch(88.4% 0.049 260.9)
-
Step 300
300
#A1C2F9
oklch(81% 0.086 260.5)
-
Step 400
400
#6DA0F6
oklch(70.7% 0.138 260.4)
-
Step 500
500
#4585F2
oklch(63% 0.177 260.3)
-
Step 600
600
#266CE1
oklch(55.6% 0.192 260.3)
-
Step 700
700
#1959C4
oklch(49.1% 0.179 260.5)
-
Step 800
800
#17499E
oklch(42.6% 0.148 260.5)
-
Step 900
900
#1A3E7E
oklch(37.6% 0.116 260.9)
-
Step 950
950 (this color)
#0C2145
oklch(25.4% 0.073 260.4)
#0C2145 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) | #0E2546 | 0.014 |
| Deuteranopia (no green cones) | #032044 | 0.010 |
| Tritanopia (no blue cones) | #00292F | 0.057 |
| Achromatopsia (no color) | #222222 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C2145
#0C2145
oklch(25.4% 0.073 260.4)
- #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 #0C2145, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.034
- Dark #1B2431 ΔE 0.045
- Navy Blue #001146 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.053
- Marine #042E60 ΔE 0.060
- Jet #212529 ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.066
Use #0C2145 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.