#078CEB
Closest named color: Dark Sky Blue (#448EE4). oklch(62.8% 0.173 249.3), rgb(7, 140, 235).
Aa
Black text reads best on this color (5.95:1).
About this color
#078CEB is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.173 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.030 away. Black text reads best on it, at 5.95:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #078CEB |
| RGB | rgb(7, 140, 235) |
| HSL | hsl(205, 94%, 47%) |
| OKLCH | oklch(62.8% 0.173 249.3) |
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 #078CEB | 3.52:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #078CEB | 5.95:1 | AA | Lc 42.0 | Non-text elements, placeholder text |
| #078CEB text on white | 3.52:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #078CEB text on black | 5.95:1 | AA | Lc -39.6 | 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 500.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200
#C2DCF8
oklch(88.4% 0.048 250.3)
-
Step 300
300
#96C6F5
oklch(81% 0.084 248.4)
-
Step 400
400
#57A6F1
oklch(70.7% 0.135 249.2)
-
Step 500
500 (this color)
#078CEB
oklch(62.8% 0.173 249.3)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#032847
oklch(27.1% 0.07 248.8)
#078CEB 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) | #5C92EF | 0.054 |
| Deuteranopia (no green cones) | #3680E9 | 0.033 |
| Tritanopia (no blue cones) | #00A3B0 | 0.124 |
| Achromatopsia (no color) | #888888 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #078CEB
#078CEB
oklch(62.8% 0.173 249.3)
- #BD7700
#BD7700
oklch(62.9% 0.137 69.2)
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 #078CEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.030
- Dodger Blue #1E90FF ΔE 0.032
- Chefchaouen Blue #4895EF ΔE 0.042
- Water Blue #0E87CC ΔE 0.047
- Clear Blue #247AFD ΔE 0.056
- Soft Blue #6488EA ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.065
- Windows Blue #3778BF ΔE 0.078
Use #078CEB 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.