#3D7299
Closest named color: Muted Blue (#3B719F). oklch(53.3% 0.084 242.4), rgb(61, 114, 153).
Aa
White text reads best on this color (5.16:1).
About this color
#3D7299 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.084 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.011 away. White text reads best on it, at 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.06:1 |
| White text | 5.16:1 |
Values
| HEX | #3D7299 |
| RGB | rgb(61, 114, 153) |
| HSL | hsl(205, 43%, 42%) |
| OKLCH | oklch(53.3% 0.084 242.4) |
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 #3D7299 | 5.16:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #3D7299 | 4.06:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #3D7299 text on white | 5.16:1 | AA | Lc 75.4 | Fine for body text |
| #3D7299 text on black | 4.06:1 | AA large text | Lc -26.3 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ACC4D7
oklch(80.8% 0.038 241.9)
-
Step 400
400
#80A6C4
oklch(70.8% 0.061 242.5)
-
Step 500
500
#5F8FB4
oklch(63% 0.076 242.6)
-
Step 600
600 (this color)
#3D7299
oklch(53.3% 0.084 242.4)
-
Step 700
700
#356689
oklch(49.2% 0.077 241.7)
-
Step 800
800
#2D536F
oklch(42.7% 0.064 242.2)
-
Step 900
900
#29455A
oklch(37.8% 0.05 242.1)
-
Step 950
950
#182835
oklch(26.9% 0.033 243.9)
#3D7299 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) | #61729B | 0.042 |
| Deuteranopia (no green cones) | #546998 | 0.034 |
| Tritanopia (no blue cones) | #007C7F | 0.067 |
| Achromatopsia (no color) | #6D6D6D | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D7299
#3D7299
oklch(53.3% 0.084 242.4)
- #8F6136
#8F6136
oklch(53.2% 0.084 62.5)
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 #3D7299, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.011
- Dull Blue #49759C ΔE 0.017
- Flat Blue #3C73A8 ΔE 0.024
- Metallic Blue #4F738E ΔE 0.026
- Cerulean #457B9D ΔE 0.029
- Ocean Blue #03719C ΔE 0.032
- Sea Blue #047495 ΔE 0.032
- Stormy Blue #507B9C ΔE 0.035
Use #3D7299 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.