#3F6BB8#3F6BB8

#3F6BB8 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.5% C 0.131 H 260.8°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BB8
RGB	rgb(63, 107, 184)
HSL	hsl(218, 49%, 48%)
HSV	hsv(218, 66%, 72%)
CMYK	cmyk(65.8%, 41.8%, 0%, 27.8%)
CIE-LAB	lab(45.68, 9.98, -45.24)
CIE-LCH	lch(45.68, 46.32, 282.44°)
OKLab	oklab(53.48% -0.0209 -0.129)
OKLCH	oklch(53.48% 0.131 260.8)
XYZ	xyz(15.9563, 15.0313, 47.3985)
Luminance	0.1503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BB8 #B88C3F

analogous

#3FA7B8 #3F6BB8 #4F3FB8

triadic

#3F6BB8 #B83F6B #6BB83F

tetradic

#3F6BB8 #B83FA7 #B88C3F #3FB84F

square

#3F6BB8 #B83FA7 #B88C3F #3FB84F

split-complementary

#3F6BB8 #B84F3F #A7B83F

monochromatic

#20365D #2F508A #3F6BB8 #698DCC #96AFDB

Accessibility & contrast

On white

5.24

#3F6BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#3F6BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BB8

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BB8	#FFFFFF	#000000	##FFFFFF
##3F6BB8	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4872BB

Deuteranopia (green-blind)

#3567B6

Tritanopia (blue-blind)

#007D88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3f6bb8;
/* rgb */ color: rgb(63, 107, 184);
/* oklch */ color: oklch(53.5% 0.131 260.8);

Tailwind

colors: {
  custom: {
    50: '#8094ce',
    500: '#3f6bb8',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bb8;
$custom-light: #8094ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bb8",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 184
  },
  "hsl": {
    "h": 218.182,
    "s": 48.988,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5348,
    "c": 0.13066,
    "h": 260.8
  },
  "luminance": 0.15033
}

Semantic roles & 50–950 ramp

primary

#3F6BB8

secondary

#C7B18C

accent

#A74FD9

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3F6BB8

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

Preview Lab → · Contrast checker → · Palette generator →