#078DCF
Closest named color: Water Blue (#0E87CC). oklch(61.4% 0.14 240.2), rgb(7, 141, 207).
Aa
Black text reads best on this color (5.71:1).
About this color
#078DCF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.140 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.017 away. Black text reads best on it, at 5.71:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #078DCF |
| RGB | rgb(7, 141, 207) |
| HSL | hsl(200, 93%, 42%) |
| OKLCH | oklch(61.4% 0.14 240.2) |
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 #078DCF | 3.67:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #078DCF | 5.71:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #078DCF text on white | 3.67:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #078DCF text on black | 5.71:1 | AA | Lc -38.0 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C4DDF0
oklch(88.5% 0.037 240.7)
-
Step 300
300
#99C7E9
oklch(80.9% 0.068 240.7)
-
Step 400
400
#5BA9DE
oklch(70.7% 0.11 240.5)
-
Step 500
500 (this color)
#078DCF
oklch(61.4% 0.14 240.2)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#042940
oklch(26.9% 0.059 241.5)
#078DCF 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) | #6D8ED2 | 0.070 |
| Deuteranopia (no green cones) | #547ECE | 0.054 |
| Tritanopia (no blue cones) | #009EA5 | 0.092 |
| Achromatopsia (no color) | #858585 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #078DCF
#078DCF
oklch(61.4% 0.14 240.2)
- #BF6D0E
#BF6D0E
oklch(61.4% 0.139 60.7)
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 #078DCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.017
- Blue NCS #118AB2 ΔE 0.044
- Dark Sky Blue #448EE4 ΔE 0.045
- Cool Blue #4984B8 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.049
- Windows Blue #3778BF ΔE 0.058
- Off Blue #5684AE ΔE 0.061
- Chefchaouen Blue #4895EF ΔE 0.063
Use #078DCF 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.