#0C1338
Closest named color: Navy Blue (#001146). oklch(20.7% 0.072 270.7), rgb(12, 19, 56).
Aa
White text reads best on this color (18.01:1).
About this color
#0C1338 is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.072 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.032 away. White text reads best on it, at 18.01:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 18.01:1 |
Values
| HEX | #0C1338 |
| RGB | rgb(12, 19, 56) |
| HSL | hsl(230, 65%, 13%) |
| OKLCH | oklch(20.7% 0.072 270.7) |
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 #0C1338 | 18.01:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #0C1338 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #0C1338 text on white | 18.01:1 | AAA | Lc 104.6 | Preferred for body text |
| #0C1338 text on black | 1.16:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEF9
oklch(80.9% 0.086 271.2)
-
Step 400
400
#819AF6
oklch(70.6% 0.138 271)
-
Step 500
500
#637EF2
oklch(63% 0.176 270.8)
-
Step 600
600
#4C64E1
oklch(55.6% 0.191 270.7)
-
Step 700
700
#3E52C3
oklch(49.1% 0.177 270.8)
-
Step 800
800
#33449E
oklch(42.7% 0.147 270.8)
-
Step 900
900
#2C3A7D
oklch(37.6% 0.114 271)
-
Step 950
950 (this color)
#0C1338
oklch(20.7% 0.072 270.7)
#0C1338 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) | #001939 | 0.022 |
| Deuteranopia (no green cones) | #001537 | 0.017 |
| Tritanopia (no blue cones) | #001C23 | 0.059 |
| Achromatopsia (no color) | #171717 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C1338
#0C1338
oklch(20.7% 0.072 270.7)
- #1F1600
#1F1600
oklch(20.6% 0.042 89.1)
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 #0C1338, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.032
- Rich Black #0D1B2A ΔE 0.042
- Night Blue #040348 ΔE 0.050
- Dark Navy #000435 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.064
- Very Dark Blue #000133 ΔE 0.065
- Midnight #03012D ΔE 0.067
- Dark Navy Blue #00022E ΔE 0.067
Use #0C1338 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.