#3079BD
Closest named color: Windows Blue (#3778BF). oklch(56.4% 0.128 249.9), rgb(48, 121, 189).
Aa
Black text reads best on this color (4.59:1).
About this color
#3079BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.128 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.007 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #3079BD |
| RGB | rgb(48, 121, 189) |
| HSL | hsl(209, 59%, 46%) |
| OKLCH | oklch(56.4% 0.128 249.9) |
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 #3079BD | 4.56:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #3079BD | 4.59:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #3079BD text on white | 4.56:1 | AA | Lc 71.4 | Content text, not long reading |
| #3079BD text on black | 4.59:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E5
oklch(80.9% 0.058 250.2)
-
Step 400
400
#73A5D8
oklch(70.7% 0.092 249.7)
-
Step 500
500
#4D8ECE
oklch(63.2% 0.118 249.9)
-
Step 600
600 (this color)
#3079BD
oklch(56.4% 0.128 249.9)
-
Step 700
700
#1F63A1
oklch(49% 0.12 250.2)
-
Step 800
800
#1D5182
oklch(42.6% 0.098 250.2)
-
Step 900
900
#1E4468
oklch(37.7% 0.076 249.4)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#3079BD 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) | #5A7DC0 | 0.043 |
| Deuteranopia (no green cones) | #4570BC | 0.028 |
| Tritanopia (no blue cones) | #008992 | 0.094 |
| Achromatopsia (no color) | #767676 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3079BD
#3079BD
oklch(56.4% 0.128 249.9)
- #A26600
#A26600
oklch(56.2% 0.122 69.8)
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 #3079BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.007
- Nice Blue #107AB0 ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.034
- Steel Blue #4682B4 ΔE 0.038
- Water Blue #0E87CC ΔE 0.041
- French Blue #436BAD ΔE 0.042
- Cool Blue #4984B8 ΔE 0.042
- Mid Blue #276AB3 ΔE 0.045
Use #3079BD 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.