#0C122C
Closest named color: Rich Black (#0D1B2A). oklch(19.3% 0.053 270.9), rgb(12, 18, 44).
Aa
White text reads best on this color (18.44:1).
About this color
#0C122C is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.053 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 18.44:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.44:1 |
Values
| HEX | #0C122C |
| RGB | rgb(12, 18, 44) |
| HSL | hsl(229, 57%, 11%) |
| OKLCH | oklch(19.3% 0.053 270.9) |
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 #0C122C | 18.44:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #0C122C | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #0C122C text on white | 18.44:1 | AAA | Lc 105.0 | Preferred for body text |
| #0C122C text on black | 1.13:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D8F1
oklch(88.4% 0.035 271.5)
-
Step 300
300
#B1BFEA
oklch(80.8% 0.063 270.8)
-
Step 400
400
#899DE0
oklch(70.7% 0.101 270.9)
-
Step 500
500
#6D83D7
oklch(63% 0.129 271.2)
-
Step 600
600
#566BC4
oklch(55.5% 0.14 271.2)
-
Step 700
700
#4659A9
oklch(49% 0.129 270.9)
-
Step 800
800
#3A4989
oklch(42.6% 0.107 271.3)
-
Step 900
900
#313E6E
oklch(37.7% 0.084 270.5)
-
Step 950
950 (this color)
#0C122C
oklch(19.3% 0.053 270.9)
#0C122C 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) | #06152D | 0.012 |
| Deuteranopia (no green cones) | #03132B | 0.014 |
| Tritanopia (no blue cones) | #00181C | 0.047 |
| Achromatopsia (no color) | #141414 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C122C
#0C122C
oklch(19.3% 0.053 270.9)
- #1B1400
#1B1400
oklch(19.4% 0.04 92.7)
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 #0C122C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Rich Navy #001219 ΔE 0.047
- Navy Blue #001146 ΔE 0.053
- Dark Navy #000435 ΔE 0.055
- Midnight #03012D ΔE 0.062
- Dark Navy Blue #00022E ΔE 0.063
- Very Dark Blue #000133 ΔE 0.065
- Almost Black #070D0D ΔE 0.066
Use #0C122C 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.