#3077AA
Closest named color: Flat Blue (#3C73A8). oklch(54.8% 0.106 243.4), rgb(48, 119, 170).
Aa
White text reads best on this color (4.83:1).
About this color
#3077AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.106 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.013 away. White text reads best on it, at 4.83:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.34:1 |
| White text | 4.83:1 |
Values
| HEX | #3077AA |
| RGB | rgb(48, 119, 170) |
| HSL | hsl(205, 56%, 43%) |
| OKLCH | oklch(54.8% 0.106 243.4) |
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 #3077AA | 4.83:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #3077AA | 4.34:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #3077AA text on white | 4.83:1 | AA | Lc 73.2 | Content text, not long reading |
| #3077AA text on black | 4.34:1 | AA large text | Lc -28.5 | Dividers and decoration only |
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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDCEA
oklch(88.6% 0.027 242.8)
-
Step 300
300
#A7C5DE
oklch(81% 0.048 243.5)
-
Step 400
400
#77A6CD
oklch(70.6% 0.076 244.2)
-
Step 500
500
#5190C0
oklch(63.1% 0.098 243.2)
-
Step 600
600 (this color)
#3077AA
oklch(54.8% 0.106 243.4)
-
Step 700
700
#246694
oklch(49.1% 0.099 243.2)
-
Step 800
800
#205378
oklch(42.6% 0.082 243.5)
-
Step 900
900
#204561
oklch(37.7% 0.064 243.6)
-
Step 950
950
#142939
oklch(27.2% 0.04 243)
#3077AA 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) | #6078AC | 0.049 |
| Deuteranopia (no green cones) | #4F6CA9 | 0.039 |
| Tritanopia (no blue cones) | #008389 | 0.075 |
| Achromatopsia (no color) | #727272 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3077AA
#3077AA
oklch(54.8% 0.106 243.4)
- #9C6224
#9C6224
oklch(54.9% 0.106 63.6)
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 #3077AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.013
- Nice Blue #107AB0 ΔE 0.017
- Muted Blue #3B719F ΔE 0.022
- Dull Blue #49759C ΔE 0.028
- Cerulean #457B9D ΔE 0.032
- Windows Blue #3778BF ΔE 0.034
- Ocean Blue #03719C ΔE 0.036
- French Blue #436BAD ΔE 0.037
Use #3077AA 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.