#3071AA
Closest named color: Flat Blue (#3C73A8). oklch(53.4% 0.111 248.1), rgb(48, 113, 170).
Aa
White text reads best on this color (5.16:1).
About this color
#3071AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.111 and its hue 248°. 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 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.06:1 |
| White text | 5.16:1 |
Values
| HEX | #3071AA |
| RGB | rgb(48, 113, 170) |
| HSL | hsl(208, 56%, 43%) |
| OKLCH | oklch(53.4% 0.111 248.1) |
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 #3071AA | 5.16:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #3071AA | 4.06:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #3071AA text on white | 5.16:1 | AA | Lc 75.3 | Fine for body text |
| #3071AA text on black | 4.06:1 | AA large text | Lc -26.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A8C4E0
oklch(80.9% 0.05 248.4)
-
Step 400
400
#78A5D1
oklch(70.6% 0.081 248.5)
-
Step 500
500
#548EC5
oklch(63% 0.103 248.6)
-
Step 600
600 (this color)
#3071AA
oklch(53.4% 0.111 248.1)
-
Step 700
700
#296498
oklch(49% 0.104 248.3)
-
Step 800
800
#23527B
oklch(42.6% 0.085 247.7)
-
Step 900
900
#224463
oklch(37.6% 0.067 248)
-
Step 950
950
#15283A
oklch(27% 0.042 248.4)
#3071AA 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) | #5774AC | 0.042 |
| Deuteranopia (no green cones) | #4668A9 | 0.030 |
| Tritanopia (no blue cones) | #007F85 | 0.084 |
| Achromatopsia (no color) | #6D6D6D | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3071AA
#3071AA
oklch(53.4% 0.111 248.1)
- #975F10
#975F10
oklch(53.5% 0.112 68.1)
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 #3071AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.013
- Muted Blue #3B719F ΔE 0.019
- French Blue #436BAD ΔE 0.024
- Nice Blue #107AB0 ΔE 0.027
- Mid Blue #276AB3 ΔE 0.028
- Ocean Blue #03719C ΔE 0.032
- Dull Blue #49759C ΔE 0.036
- Windows Blue #3778BF ΔE 0.037
Use #3071AA 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.