#3F6EBB#3F6EBB

#3F6EBB is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.3% C 0.131 H 259.8°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F6EBB
RGB	rgb(63, 110, 187)
HSL	hsl(217, 50%, 49%)
HSV	hsv(217, 66%, 73%)
CMYK	cmyk(66.3%, 41.2%, 0%, 26.7%)
CIE-LAB	lab(46.70, 9.17, -45.34)
CIE-LCH	lch(46.70, 46.26, 281.43°)
OKLab	oklab(54.33% -0.0233 -0.1292)
OKLCH	oklch(54.33% 0.131 259.8)
XYZ	xyz(16.5923, 15.7949, 49.1784)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6EBB #BB8C3F

analogous

#3FACBB #3F6EBB #4E3FBB

triadic

#3F6EBB #BB3F6E #6EBB3F

tetradic

#3F6EBB #BB3FAC #BB8C3F #3FBB4E

square

#3F6EBB #BB3FAC #BB8C3F #3FBB4E

split-complementary

#3F6EBB #BB4E3F #ACBB3F

monochromatic

#20385F #30538D #3F6EBB #6A90CD #98B2DC

Accessibility & contrast

On white

5.05

#3F6EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3F6EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6EBB

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6EBB	#FFFFFF	#000000	##FFFFFF
##3F6EBB	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B75BE

Deuteranopia (green-blind)

#3869B9

Tritanopia (blue-blind)

#00808B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6ebb;
/* rgb */ color: rgb(63, 110, 187);
/* oklch */ color: oklch(54.3% 0.131 259.8);

Tailwind

colors: {
  custom: {
    50: '#8197d0',
    500: '#3f6ebb',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ebb;
$custom-light: #8197d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ebb",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 187
  },
  "hsl": {
    "h": 217.258,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.5433,
    "c": 0.13132,
    "h": 259.8
  },
  "luminance": 0.15796
}

Semantic roles & 50–950 ramp

primary

#3F6EBB

secondary

#C8B28E

accent

#A54FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3F6EBB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →