#0C1138
Closest named color: Navy Blue (#001146). oklch(20.2% 0.075 272.2), rgb(12, 17, 56).
Aa
White text reads best on this color (18.21:1).
About this color
#0C1138 is a very dark, moderately saturated blue. In OKLCH its lightness is 20%, its chroma 0.075 and its hue 272°. 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 18.21:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.15:1 |
| White text | 18.21:1 |
Values
| HEX | #0C1138 |
| RGB | rgb(12, 17, 56) |
| HSL | hsl(233, 65%, 13%) |
| OKLCH | oklch(20.2% 0.075 272.2) |
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 #0C1138 | 18.21:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #0C1138 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #0C1138 text on white | 18.21:1 | AAA | Lc 104.7 | Preferred for body text |
| #0C1138 text on black | 1.15:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CDD8FB
oklch(88.5% 0.05 271.6)
-
Step 300
300
#ACBEFB
oklch(81% 0.089 271.6)
-
Step 400
400
#8299F9
oklch(70.7% 0.143 272.1)
-
Step 500
500
#657CF6
oklch(63% 0.183 272.1)
-
Step 600
600
#4F62E5
oklch(55.7% 0.198 272.1)
-
Step 700
700
#4150C7
oklch(49.2% 0.184 272.2)
-
Step 800
800
#3542A1
oklch(42.7% 0.153 272.3)
-
Step 900
900
#2D3980
oklch(37.7% 0.12 272.1)
-
Step 950
950 (this color)
#0C1138
oklch(20.2% 0.075 272.2)
#0C1138 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) | #001739 | 0.022 |
| Deuteranopia (no green cones) | #001337 | 0.018 |
| Tritanopia (no blue cones) | #001B22 | 0.062 |
| Achromatopsia (no color) | #151515 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C1138
#0C1138
oklch(20.2% 0.075 272.2)
- #1D1600
#1D1600
oklch(20.3% 0.042 93.7)
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 #0C1138, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.032
- Night Blue #040348 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.047
- Dark Navy #000435 ΔE 0.049
- Very Dark Blue #000133 ΔE 0.060
- Midnight #03012D ΔE 0.061
- Dark Navy Blue #00022E ΔE 0.062
- Dark Indigo #1F0954 ΔE 0.063
Use #0C1138 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.