#0F73A5
Closest named color: Ocean Blue (#03719C). oklch(52.8% 0.114 238.5), rgb(15, 115, 165).
Aa
White text reads best on this color (5.22:1).
About this color
#0F73A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.114 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.015 away. White text reads best on it, at 5.22:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 4.01:1 |
| White text | 5.22:1 |
Values
| HEX | #0F73A5 |
| RGB | rgb(15, 115, 165) |
| HSL | hsl(200, 83%, 35%) |
| OKLCH | oklch(52.8% 0.114 238.5) |
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 #0F73A5 | 5.22:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #0F73A5 | 4.01:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #0F73A5 text on white | 5.22:1 | AA | Lc 75.4 | Fine for body text |
| #0F73A5 text on black | 4.01:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A3C6DE
oklch(80.9% 0.051 238.2)
-
Step 400
400
#6FA8CE
oklch(70.7% 0.082 238.7)
-
Step 500
500
#4492C1
oklch(63.1% 0.104 238)
-
Step 600
600 (this color)
#0F73A5
oklch(52.8% 0.114 238.5)
-
Step 700
700
#0C6895
oklch(49.1% 0.105 238)
-
Step 800
800
#115579
oklch(42.8% 0.087 238.1)
-
Step 900
900
#184662
oklch(37.7% 0.069 239.2)
-
Step 950
950
#102939
oklch(26.9% 0.043 239.2)
#0F73A5 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) | #5B73A7 | 0.061 |
| Deuteranopia (no green cones) | #4767A4 | 0.047 |
| Tritanopia (no blue cones) | #008085 | 0.073 |
| Achromatopsia (no color) | #6C6C6C | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F73A5
#0F73A5
oklch(52.8% 0.114 238.5)
- #9B581A
#9B581A
oklch(52.8% 0.114 58)
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 #0F73A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.015
- Nice Blue #107AB0 ΔE 0.024
- Muted Blue #3B719F ΔE 0.026
- Sea Blue #047495 ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.028
- Mid Blue #276AB3 ΔE 0.038
- Peacock Blue #016795 ΔE 0.041
- Dull Blue #49759C ΔE 0.042
Use #0F73A5 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.