#0F5597
Closest named color: Dusk Blue (#26538D). oklch(44.6% 0.126 252.4), rgb(15, 85, 151).
Aa
White text reads best on this color (7.59:1).
About this color
#0F5597 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.126 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.020 away. White text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #0F5597 |
| RGB | rgb(15, 85, 151) |
| HSL | hsl(209, 82%, 33%) |
| OKLCH | oklch(44.6% 0.126 252.4) |
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 #0F5597 | 7.59:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #0F5597 | 2.76:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #0F5597 text on white | 7.59:1 | AAA | Lc 85.9 | Fine for body text |
| #0F5597 text on black | 2.76:1 | Fails | Lc -16.2 | 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 800.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DBF4
oklch(88.4% 0.041 252.8)
-
Step 300
300
#9FC4EF
oklch(80.9% 0.073 252.5)
-
Step 400
400
#68A4E8
oklch(70.6% 0.118 252.6)
-
Step 500
500
#3B8CE1
oklch(63.1% 0.15 252.3)
-
Step 600
600
#0C74CF
oklch(55.6% 0.164 252.4)
-
Step 700
700
#0061B1
oklch(49.1% 0.148 252.3)
-
Step 800
800 (this color)
#0F5597
oklch(44.6% 0.126 252.4)
-
Step 900
900
#124374
oklch(37.8% 0.098 252.2)
-
Step 950
950
#0D2744
oklch(27% 0.063 253.3)
#0F5597 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) | #335A9A | 0.032 |
| Deuteranopia (no green cones) | #184E96 | 0.019 |
| Tritanopia (no blue cones) | #00656E | 0.094 |
| Achromatopsia (no color) | #545454 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F5597
#0F5597
oklch(44.6% 0.126 252.4)
- #744A00
#744A00
oklch(44.6% 0.095 72.3)
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 #0F5597, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.020
- Light Navy #155084 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.036
- Cobalt #1E488F ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.042
- Peacock Blue #016795 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.061
Use #0F5597 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.