#0F153C
Closest named color: Navy Blue (#001146). oklch(21.8% 0.075 272), rgb(15, 21, 60).
Aa
White text reads best on this color (17.60:1).
About this color
#0F153C is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, 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 17.60:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.19:1 |
| White text | 17.60:1 |
Values
| HEX | #0F153C |
| RGB | rgb(15, 21, 60) |
| HSL | hsl(232, 60%, 15%) |
| OKLCH | oklch(21.8% 0.075 272) |
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 #0F153C | 17.60:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #0F153C | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #0F153C text on white | 17.60:1 | AAA | Lc 104.2 | Preferred for body text |
| #0F153C text on black | 1.19:1 | 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
#657CF5
oklch(63% 0.182 272.1)
-
Step 600
600
#4F62E4
oklch(55.6% 0.197 272.1)
-
Step 700
700
#4050C6
oklch(49% 0.183 271.9)
-
Step 800
800
#3542A0
oklch(42.6% 0.152 272.3)
-
Step 900
900
#2D397F
oklch(37.6% 0.118 272.1)
-
Step 950
950 (this color)
#0F153C
oklch(21.8% 0.075 272)
#0F153C 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) | #001B3D | 0.024 |
| Deuteranopia (no green cones) | #00173B | 0.020 |
| Tritanopia (no blue cones) | #001E26 | 0.060 |
| Achromatopsia (no color) | #191919 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F153C
#0F153C
oklch(21.8% 0.075 272)
- #211900
#211900
oklch(21.7% 0.044 92.8)
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 #0F153C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.032
- Rich Black #0D1B2A ΔE 0.044
- Night Blue #040348 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.062
- Dark Navy #000435 ΔE 0.063
- Dark #1B2431 ΔE 0.063
- Midnight Purple #280137 ΔE 0.068
Use #0F153C 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.