#3F6DA2
Closest named color: Muted Blue (#3B719F). oklch(52.6% 0.098 253.1), rgb(63, 109, 162).
Aa
White text reads best on this color (5.35:1).
About this color
#3F6DA2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.098 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.014 away. White text reads best on it, at 5.35:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.92:1 |
| White text | 5.35:1 |
Values
| HEX | #3F6DA2 |
| RGB | rgb(63, 109, 162) |
| HSL | hsl(212, 44%, 44%) |
| OKLCH | oklch(52.6% 0.098 253.1) |
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 #3F6DA2 | 5.35:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #3F6DA2 | 3.92:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #3F6DA2 text on white | 5.35:1 | AA | Lc 76.5 | Fine for body text |
| #3F6DA2 text on black | 3.92:1 | AA large text | Lc -25.2 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400
#81A4CC
oklch(70.7% 0.07 252.1)
-
Step 500
500
#618CBF
oklch(63% 0.091 253.3)
-
Step 600
600 (this color)
#3F6DA2
oklch(52.6% 0.098 253.1)
-
Step 700
700
#396393
oklch(49.2% 0.091 252.9)
-
Step 800
800
#2F5177
oklch(42.7% 0.075 252.4)
-
Step 900
900
#2A4360
oklch(37.6% 0.059 253)
-
Step 950
950
#192738
oklch(26.9% 0.037 253.8)
#3F6DA2 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) | #5770A4 | 0.030 |
| Deuteranopia (no green cones) | #4966A1 | 0.021 |
| Tritanopia (no blue cones) | #007980 | 0.082 |
| Achromatopsia (no color) | #6B6B6B | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F6DA2
#3F6DA2
oklch(52.6% 0.098 253.1)
- #8D611E
#8D611E
oklch(52.7% 0.099 73.3)
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 #3F6DA2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.014
- Flat Blue #3C73A8 ΔE 0.018
- French Blue #436BAD ΔE 0.020
- Dull Blue #49759C ΔE 0.030
- Mid Blue #276AB3 ΔE 0.036
- Ocean Blue #03719C ΔE 0.037
- Dusky Blue #475F94 ΔE 0.041
- Denim #3B638C ΔE 0.042
Use #3F6DA2 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.