#0B1E58
Closest named color: Midnight Blue (#191970). oklch(26.4% 0.107 265.4), rgb(11, 30, 88).
Aa
White text reads best on this color (15.66:1).
About this color
#0B1E58 is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.107 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.046 away. White text reads best on it, at 15.66:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.34:1 |
| White text | 15.66:1 |
Values
| HEX | #0B1E58 |
| RGB | rgb(11, 30, 88) |
| HSL | hsl(225, 78%, 19%) |
| OKLCH | oklch(26.4% 0.107 265.4) |
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 #0B1E58 | 15.66:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #0B1E58 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #0B1E58 text on white | 15.66:1 | AAA | Lc 102.2 | Preferred for body text |
| #0B1E58 text on black | 1.34:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#729CFF
oklch(70.6% 0.153 265.4)
-
Step 500
500
#4F7FFF
oklch(63.1% 0.197 265.6)
-
Step 600
600
#2C5EFF
oklch(55.6% 0.244 265.3)
-
Step 700
700
#1940F2
oklch(49.1% 0.263 265.5)
-
Step 800
800
#1537C3
oklch(42.6% 0.218 265.5)
-
Step 900
900
#15339A
oklch(37.7% 0.171 265.5)
-
Step 950
950 (this color)
#0B1E58
oklch(26.4% 0.107 265.4)
#0B1E58 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) | #00275A | 0.025 |
| Deuteranopia (no green cones) | #002057 | 0.010 |
| Tritanopia (no blue cones) | #002D37 | 0.084 |
| Achromatopsia (no color) | #232323 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B1E58
#0B1E58
oklch(26.4% 0.107 265.4)
- #312200
#312200
oklch(26.3% 0.054 84.1)
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 #0B1E58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.046
- Marine #042E60 ΔE 0.047
- Dark Indigo #1F0954 ΔE 0.050
- Darkblue #030764 ΔE 0.051
- Navy Blue #001146 ΔE 0.054
- Dark Royal Blue #02066F ΔE 0.058
- Deep Blue #040273 ΔE 0.064
- Oxford Blue #1B263B ΔE 0.065
Use #0B1E58 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.