#0F52BA
Closest named color: Blue Blue (#2242C7). oklch(46.7% 0.176 260), rgb(15, 82, 186).
Aa
White text reads best on this color (7.15:1).
About this color
#0F52BA is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.176 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.041 away. White text reads best on it, at 7.15:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #0F52BA |
| RGB | rgb(15, 82, 186) |
| HSL | hsl(216, 85%, 39%) |
| OKLCH | oklch(46.7% 0.176 260) |
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 #0F52BA | 7.15:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #0F52BA | 2.93:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #0F52BA text on white | 7.15:1 | AAA | Lc 84.1 | Fine for body text |
| #0F52BA text on black | 2.93:1 | Fails | Lc -17.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DAF9
oklch(88.4% 0.048 260.2)
-
Step 300
300
#A1C2F8
oklch(80.9% 0.085 260.1)
-
Step 400
400
#6DA0F5
oklch(70.7% 0.137 260.2)
-
Step 500
500
#4586F1
oklch(63.2% 0.174 259.9)
-
Step 600
600
#266CE0
oklch(55.6% 0.19 260.2)
-
Step 700
700 (this color)
#0F52BA
oklch(46.7% 0.176 260)
-
Step 800
800
#174A9D
oklch(42.7% 0.146 260)
-
Step 900
900
#193F7D
oklch(37.8% 0.114 259.8)
-
Step 950
950
#102549
oklch(26.9% 0.072 260.4)
#0F52BA 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) | #005FBE | 0.033 |
| Deuteranopia (no green cones) | #0051B8 | 0.007 |
| Tritanopia (no blue cones) | #006C7E | 0.133 |
| Achromatopsia (no color) | #585858 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F52BA
#0F52BA
oklch(46.7% 0.176 260)
- #765300
#765300
oklch(46.8% 0.097 80.4)
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 #0F52BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.041
- Sapphire #2138AB ΔE 0.065
- Majorelle Blue #3F37C9 ΔE 0.068
- Mid Blue #276AB3 ΔE 0.071
- Cobalt #1E488F ΔE 0.072
- Dusk Blue #26538D ΔE 0.074
- Warm Blue #4B57DB ΔE 0.078
- Denim Blue #3B5B92 ΔE 0.079
Use #0F52BA 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.