#0F1337
Closest named color: Navy Blue (#001146). oklch(20.8% 0.07 273.9), rgb(15, 19, 55).
Aa
White text reads best on this color (17.96:1).
About this color
#0F1337 is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.070 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.037 away. White text reads best on it, at 17.96:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 17.96:1 |
Values
| HEX | #0F1337 |
| RGB | rgb(15, 19, 55) |
| HSL | hsl(234, 57%, 14%) |
| OKLCH | oklch(20.8% 0.07 273.9) |
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 #0F1337 | 17.96:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #0F1337 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #0F1337 text on white | 17.96:1 | AAA | Lc 104.6 | Preferred for body text |
| #0F1337 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#B0BDF7
oklch(80.9% 0.083 274.6)
-
Step 400
400
#8799F2
oklch(70.6% 0.132 273.9)
-
Step 500
500
#6C7DEE
oklch(63.1% 0.169 274.1)
-
Step 600
600
#5563DC
oklch(55.5% 0.183 273.8)
-
Step 700
700
#4651BF
oklch(49% 0.171 273.9)
-
Step 800
800
#39439A
oklch(42.6% 0.141 273.9)
-
Step 900
900
#313A7B
oklch(37.8% 0.11 274)
-
Step 950
950 (this color)
#0F1337
oklch(20.8% 0.07 273.9)
#0F1337 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) | #001938 | 0.025 |
| Deuteranopia (no green cones) | #001536 | 0.022 |
| Tritanopia (no blue cones) | #001C22 | 0.060 |
| Achromatopsia (no color) | #171717 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1337
#0F1337
oklch(20.8% 0.07 273.9)
- #1E1700
#1E1700
oklch(20.7% 0.042 94.1)
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 #0F1337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.040
- Night Blue #040348 ΔE 0.054
- Dark Navy #000435 ΔE 0.057
- Dark Indigo #1F0954 ΔE 0.063
- Midnight Purple #280137 ΔE 0.066
- Dark #1B2431 ΔE 0.066
- Oxford Blue #1B263B ΔE 0.068
Use #0F1337 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.