#3A709D
Closest named color: Muted Blue (#3B719F). oklch(52.8% 0.092 245.9), rgb(58, 112, 157).
Aa
White text reads best on this color (5.27:1).
About this color
#3A709D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.092 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.004 away. White text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #3A709D |
| RGB | rgb(58, 112, 157) |
| HSL | hsl(207, 46%, 42%) |
| OKLCH | oklch(52.8% 0.092 245.9) |
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 #3A709D | 5.27:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #3A709D | 3.98:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #3A709D text on white | 5.27:1 | AA | Lc 76.0 | Fine for body text |
| #3A709D text on black | 3.98:1 | AA large text | Lc -25.7 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ACC4DA
oklch(80.9% 0.041 246)
-
Step 400
400
#7FA5C8
oklch(70.7% 0.066 246.7)
-
Step 500
500
#5D8FBA
oklch(63.2% 0.085 245.6)
-
Step 600
600 (this color)
#3A709D
oklch(52.8% 0.092 245.9)
-
Step 700
700
#34658E
oklch(49.1% 0.085 245.9)
-
Step 800
800
#2C5273
oklch(42.6% 0.07 246.6)
-
Step 900
900
#28445D
oklch(37.6% 0.055 246.8)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#3A709D 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) | #5C719F | 0.039 |
| Deuteranopia (no green cones) | #4F679C | 0.032 |
| Tritanopia (no blue cones) | #007B80 | 0.071 |
| Achromatopsia (no color) | #6C6C6C | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A709D
#3A709D
oklch(52.8% 0.092 245.9)
- #8F602C
#8F602C
oklch(52.9% 0.091 66.2)
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 #3A709D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.004
- Flat Blue #3C73A8 ΔE 0.018
- Dull Blue #49759C ΔE 0.023
- Ocean Blue #03719C ΔE 0.028
- French Blue #436BAD ΔE 0.033
- Sea Blue #047495 ΔE 0.034
- Metallic Blue #4F738E ΔE 0.035
- Cerulean #457B9D ΔE 0.036
Use #3A709D 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.