#3F6BC4#3F6BC4

#3F6BC4 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.3% C 0.147 H 262.7°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BC4
RGB	rgb(63, 107, 196)
HSL	hsl(220, 53%, 51%)
HSV	hsv(220, 68%, 77%)
CMYK	cmyk(67.9%, 45.4%, 0%, 23.1%)
CIE-LAB	lab(46.39, 14.28, -51.05)
CIE-LCH	lch(46.39, 53.01, 285.63°)
OKLab	oklab(54.26% -0.0187 -0.146)
OKLCH	oklch(54.26% 0.147 262.7)
XYZ	xyz(17.2679, 15.5560, 54.3064)
Luminance	0.1556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BC4 #C4983F

analogous

#3FAEC4 #3F6BC4 #553FC4

triadic

#3F6BC4 #C43F6B #6BC43F

tetradic

#3F6BC4 #C43FAE #C4983F #3FC455

square

#3F6BC4 #C43FAE #C4983F #3FC455

split-complementary

#3F6BC4 #C4553F #AEC43F

monochromatic

#203868 #2E5197 #3F6BC4 #6E8FD2 #9DB3E1

Accessibility & contrast

On white

5.11

#3F6BC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#3F6BC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BC4

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BC4	#FFFFFF	#000000	##FFFFFF
##3F6BC4	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F74C7

Deuteranopia (green-blind)

#2668C2

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f6bc4;
/* rgb */ color: rgb(63, 107, 196);
/* oklch */ color: oklch(54.3% 0.147 262.7);

Tailwind

colors: {
  custom: {
    50: '#8394d6',
    500: '#3f6bc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bc4;
$custom-light: #8394d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bc4",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 196
  },
  "hsl": {
    "h": 220.15,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.54256,
    "c": 0.14723,
    "h": 262.7
  },
  "luminance": 0.15558
}

Semantic roles & 50–950 ramp

primary

#3F6BC4

secondary

#CDB992

accent

#AC4BDC

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6BC4

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

Preview Lab → · Contrast checker → · Palette generator →