#0F72E4
Closest named color: Cerulean Blue (#056EEE). oklch(56.7% 0.192 256.8), rgb(15, 114, 228).
Aa
White text reads best on this color (4.61:1).
About this color
#0F72E4 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.192 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.019 away. White text reads best on it, at 4.61:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.54:1 |
| White text | 4.61:1 |
Values
| HEX | #0F72E4 |
| RGB | rgb(15, 114, 228) |
| HSL | hsl(212, 88%, 48%) |
| OKLCH | oklch(56.7% 0.192 256.8) |
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 #0F72E4 | 4.61:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #0F72E4 | 4.54:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #0F72E4 text on white | 4.61:1 | AA | Lc 71.3 | Content text, not long reading |
| #0F72E4 text on black | 4.54:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9DC3F8
oklch(80.9% 0.086 256.8)
-
Step 400
400
#65A2F5
oklch(70.7% 0.138 256.5)
-
Step 500
500
#3888F1
oklch(63.1% 0.176 256.6)
-
Step 600
600 (this color)
#0F72E4
oklch(56.7% 0.192 256.8)
-
Step 700
700
#005CBF
oklch(49% 0.172 256.8)
-
Step 800
800
#034B9D
oklch(42.6% 0.148 256.9)
-
Step 900
900
#10407D
oklch(37.7% 0.115 256.7)
-
Step 950
950
#0C2649
oklch(27% 0.072 256.9)
#0F72E4 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) | #257EE8 | 0.034 |
| Deuteranopia (no green cones) | #006CE2 | 0.017 |
| Tritanopia (no blue cones) | #008EA0 | 0.145 |
| Achromatopsia (no color) | #757575 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F72E4
#0F72E4
oklch(56.7% 0.192 256.8)
- #9D6B00
#9D6B00
oklch(56.6% 0.119 76.6)
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 #0F72E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.019
- Royal Blue #4169E1 ΔE 0.033
- Clear Blue #247AFD ΔE 0.044
- Bright Blue #0165FC ΔE 0.049
- Neon Blue #4361EE ΔE 0.050
- Azul #1D5DEC ΔE 0.052
- Windows Blue #3778BF ΔE 0.064
- Warm Blue #4B57DB ΔE 0.070
Use #0F72E4 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.