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#3F51B5

#3F51B5 Color — #3F51B5

Complete color reference for #3F51B5: conversions to RGB, HSL, HSV, CMYK, color harmonies, shades & tints scale, and WCAG accessibility contrast ratios.

Color Format Conversions

HEX#3F51B5
RGBrgb(63, 81, 181)
HSLhsl(231, 48%, 48%)
HSVhsv(231, 65%, 71%)
CMYKC:65% M:55% Y:0% K:29%
CSS Color#3F51B5
Decimal4149685
Luminance0.1028

WCAG Accessibility Contrast

#3F51B5 on White
Ratio: 6.87:1 — AA
#3F51B5 on Black
Ratio: 3.06:1 — AA Large
White on #3F51B5
Ratio: 6.87:1 — AA
Black on #3F51B5
Ratio: 3.06:1 — AA Large

WCAG AA requires ≥4.5:1 (normal text) or ≥3:1 (large text). WCAG AAA requires ≥7:1.

Shades & Tints Scale

50#F5F6FB
100#E2E5F4
200#C5CBE9
300#A9B1DE
400#828ECF
500#3F51B5
600#324191
700#26316D
800#192048
900#10142D

Steps 50–400 are tints (mixed with white); 500 is the base color; 600–900 are shades (mixed with black).

Color Harmonies

Related Color Tools

Frequently Asked Questions

What is the RGB equivalent of #3F51B5?

The RGB equivalent is rgb(63, 81, 181). The red channel is 63, green is 81, and blue is 181 (scale 0–255).

What is the HSL value of #3F51B5?

The HSL value is hsl(231, 48%, 48%). Hue is 231°, saturation is 48%, and lightness is 48%.

Does #3F51B5 meet WCAG accessibility standards?

On a white background, #3F51B5 achieves a 6.87:1 contrast ratio (AA). On a black background it achieves 3.06:1 (AA Large). WCAG AA requires ≥4.5:1 for normal text.

What is the complementary color of #3F51B5?

The complementary color (180° opposite on the hue wheel) of #3F51B5 is #B5A440.