#0F1547
Closest named color: Navy Blue (#001146). oklch(22.9% 0.093 271.6), rgb(15, 21, 71).
Aa
White text reads best on this color (17.23:1).
About this color
#0F1547 is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.093 and its hue 272°. 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 17.23:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.21:1 |
| White text | 17.23:1 |
Values
| HEX | #0F1547 |
| RGB | rgb(15, 21, 71) |
| HSL | hsl(234, 65%, 17%) |
| OKLCH | oklch(22.9% 0.093 271.6) |
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 #0F1547 | 17.23:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #0F1547 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #0F1547 text on white | 17.23:1 | AAA | Lc 103.8 | Preferred for body text |
| #0F1547 text on black | 1.21:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CCD8FF
oklch(88.6% 0.055 271.8)
-
Step 300
300
#AABDFF
oklch(80.8% 0.096 271.7)
-
Step 400
400
#7F98FF
oklch(70.6% 0.153 271.7)
-
Step 500
500
#617AFF
oklch(63% 0.198 271.6)
-
Step 600
600
#4857FE
oklch(55.5% 0.244 271.6)
-
Step 700
700
#3B45DE
oklch(49% 0.227 271.7)
-
Step 800
800
#303BB3
oklch(42.7% 0.187 271.6)
-
Step 900
900
#29358D
oklch(37.7% 0.145 271.6)
-
Step 950
950 (this color)
#0F1547
oklch(22.9% 0.093 271.6)
#0F1547 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) | #001E49 | 0.028 |
| Deuteranopia (no green cones) | #001846 | 0.019 |
| Tritanopia (no blue cones) | #00222B | 0.075 |
| Achromatopsia (no color) | #1B1B1B | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1547
#0F1547
oklch(22.9% 0.093 271.6)
- #251C00
#251C00
oklch(23.1% 0.047 92)
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 #0F1547, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.026
- Dark Indigo #1F0954 ΔE 0.041
- Night Blue #040348 ΔE 0.047
- Darkblue #030764 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.062
- Oxford Blue #1B263B ΔE 0.065
- Dark Navy #000435 ΔE 0.070
- Dark #1B2431 ΔE 0.072
Use #0F1547 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.