#0F5E9B
Closest named color: Peacock Blue (#016795). oklch(47.1% 0.121 248.5), rgb(15, 94, 155).
Aa
White text reads best on this color (6.78:1).
About this color
#0F5E9B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.121 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.030 away. White text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #0F5E9B |
| RGB | rgb(15, 94, 155) |
| HSL | hsl(206, 82%, 33%) |
| OKLCH | oklch(47.1% 0.121 248.5) |
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 #0F5E9B | 6.78:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #0F5E9B | 3.09:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #0F5E9B text on white | 6.78:1 | AA | Lc 82.9 | Fine for body text |
| #0F5E9B text on black | 3.09:1 | AA large text | Lc -19.0 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300
#A4C5E5
oklch(81% 0.058 247.7)
-
Step 400
400
#71A6D9
oklch(70.8% 0.094 248.3)
-
Step 500
500
#498ECE
oklch(63% 0.12 248.7)
-
Step 600
600
#2777BB
oklch(55.5% 0.13 248.6)
-
Step 700
700 (this color)
#0F5E9B
oklch(47.1% 0.121 248.5)
-
Step 800
800
#185283
oklch(42.8% 0.1 248.5)
-
Step 900
900
#1B4469
oklch(37.7% 0.078 248.6)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#0F5E9B 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) | #40629D | 0.041 |
| Deuteranopia (no green cones) | #2A569A | 0.025 |
| Tritanopia (no blue cones) | #006D75 | 0.087 |
| Achromatopsia (no color) | #5B5B5B | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F5E9B
#0F5E9B
oklch(47.1% 0.121 248.5)
- #804E00
#804E00
oklch(47.1% 0.103 68.2)
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 #0F5E9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- Dusk Blue #26538D ΔE 0.035
- Denim #3B638C ΔE 0.045
- Dusky Blue #475F94 ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.048
- Light Navy #155084 ΔE 0.051
Use #0F5E9B 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.