#077BC4
Closest named color: Windows Blue (#3778BF). oklch(56.5% 0.143 246), rgb(7, 123, 196).
Aa
Black text reads best on this color (4.63:1).
About this color
#077BC4 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.143 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.022 away. Black text reads best on it, at 4.63:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.63:1 |
| White text | 4.52:1 |
Values
| HEX | #077BC4 |
| RGB | rgb(7, 123, 196) |
| HSL | hsl(203, 93%, 40%) |
| OKLCH | oklch(56.5% 0.143 246) |
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 #077BC4 | 4.52:1 | AA | Lc -76.3 | Fine for body text |
| Black text on #077BC4 | 4.63:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #077BC4 text on white | 4.52:1 | AA | Lc 70.8 | Content text, not long reading |
| #077BC4 text on black | 4.63:1 | AA | Lc -30.9 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#9FC5E8
oklch(80.8% 0.064 246.5)
-
Step 400
400
#68A7DD
oklch(70.7% 0.103 245.8)
-
Step 500
500
#398FD4
oklch(63% 0.132 246.4)
-
Step 600
600 (this color)
#077BC4
oklch(56.5% 0.143 246)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#005387
oklch(42.8% 0.11 245.8)
-
Step 900
900
#10456C
oklch(37.8% 0.086 245.7)
-
Step 950
950
#0C283F
oklch(26.8% 0.055 246.6)
#077BC4 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) | #577FC7 | 0.055 |
| Deuteranopia (no green cones) | #3C6FC3 | 0.038 |
| Tritanopia (no blue cones) | #008D96 | 0.100 |
| Achromatopsia (no color) | #767676 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #077BC4
#077BC4
oklch(56.5% 0.143 246)
- #A76400
#A76400
oklch(56.5% 0.126 65.8)
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 #077BC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.022
- Nice Blue #107AB0 ΔE 0.031
- Water Blue #0E87CC ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.048
- Mid Blue #276AB3 ΔE 0.049
- Steel Blue #4682B4 ΔE 0.050
- Cool Blue #4984B8 ΔE 0.052
- French Blue #436BAD ΔE 0.055
Use #077BC4 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.