#0F1D4B
Closest named color: Navy Blue (#001146). oklch(25.1% 0.087 267), rgb(15, 29, 75).
Aa
White text reads best on this color (16.18:1).
About this color
#0F1D4B is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.087 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.044 away. White text reads best on it, at 16.18:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.29:1 |
| White text | 16.18:1 |
Values
| HEX | #0F1D4B |
| RGB | rgb(15, 29, 75) |
| HSL | hsl(226, 67%, 18%) |
| OKLCH | oklch(25.1% 0.087 267) |
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 #0F1D4B | 16.18:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #0F1D4B | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0F1D4B text on white | 16.18:1 | AAA | Lc 102.9 | Preferred for body text |
| #0F1D4B text on black | 1.29:1 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600
#385FF7
oklch(55.5% 0.231 267.1)
-
Step 700
700
#2C4DD7
oklch(49% 0.214 267.1)
-
Step 800
800
#2441AE
oklch(42.8% 0.177 266.9)
-
Step 900
900
#21398A
oklch(37.8% 0.138 267)
-
Step 950
950 (this color)
#0F1D4B
oklch(25.1% 0.087 267)
#0F1D4B 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) | #00234D | 0.020 |
| Deuteranopia (no green cones) | #001E4A | 0.015 |
| Tritanopia (no blue cones) | #002830 | 0.070 |
| Achromatopsia (no color) | #212121 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1D4B
#0F1D4B
oklch(25.1% 0.087 267)
- #2C2000
#2C2000
oklch(25.1% 0.051 88.2)
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 #0F1D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.050
- Marine #042E60 ΔE 0.060
- Dark #1B2431 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.063
- Darkblue #030764 ΔE 0.065
- Night Blue #040348 ΔE 0.068
Use #0F1D4B 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.