#0C133C
Closest named color: Navy Blue (#001146). oklch(21.1% 0.079 270.7), rgb(12, 19, 60).
Aa
White text reads best on this color (17.88:1).
About this color
#0C133C is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.079 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.026 away. White text reads best on it, at 17.88:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.88:1 |
Values
| HEX | #0C133C |
| RGB | rgb(12, 19, 60) |
| HSL | hsl(231, 67%, 14%) |
| OKLCH | oklch(21.1% 0.079 270.7) |
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 #0C133C | 17.88:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #0C133C | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #0C133C text on white | 17.88:1 | AAA | Lc 104.4 | Preferred for body text |
| #0C133C text on black | 1.17:1 | 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
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FC
oklch(88.5% 0.051 270.8)
-
Step 300
300
#AABEFE
oklch(81% 0.094 270.8)
-
Step 400
400
#7E99FD
oklch(70.6% 0.149 270.8)
-
Step 500
500
#607CFB
oklch(63.1% 0.191 270.7)
-
Step 600
600
#4961EA
oklch(55.6% 0.207 270.5)
-
Step 700
700
#3B4FCC
oklch(49.1% 0.193 270.5)
-
Step 800
800
#3142A5
oklch(42.8% 0.16 270.6)
-
Step 900
900
#2A3983
oklch(37.7% 0.125 270.6)
-
Step 950
950 (this color)
#0C133C
oklch(21.1% 0.079 270.7)
#0C133C 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) | #001A3D | 0.023 |
| Deuteranopia (no green cones) | #00153B | 0.017 |
| Tritanopia (no blue cones) | #001D25 | 0.063 |
| Achromatopsia (no color) | #171717 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C133C
#0C133C
oklch(21.1% 0.079 270.7)
- #201700
#201700
oklch(21% 0.043 89.6)
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 #0C133C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.026
- Night Blue #040348 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.047
- Dark Navy #000435 ΔE 0.055
- Dark Indigo #1F0954 ΔE 0.057
- Very Dark Blue #000133 ΔE 0.066
- Oxford Blue #1B263B ΔE 0.069
- Midnight #03012D ΔE 0.069
Use #0C133C 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.