#3F6BC9#3F6BC9

#3F6BC9 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.6% C 0.154 H 263.3°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BC9
RGB	rgb(63, 107, 201)
HSL	hsl(221, 56%, 52%)
HSV	hsv(221, 69%, 79%)
CMYK	cmyk(68.7%, 46.8%, 0%, 21.2%)
CIE-LAB	lab(46.69, 16.08, -53.43)
CIE-LCH	lch(46.69, 55.80, 286.75°)
OKLab	oklab(54.59% -0.0179 -0.153)
OKLCH	oklch(54.59% 0.154 263.3)
XYZ	xyz(17.8465, 15.7874, 57.3538)
Luminance	0.1579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BC9 #C99D3F

analogous

#3FB0C9 #3F6BC9 #583FC9

triadic

#3F6BC9 #C93F6B #6BC93F

tetradic

#3F6BC9 #C93FB0 #C99D3F #3FC958

square

#3F6BC9 #C93FB0 #C99D3F #3FC958

split-complementary

#3F6BC9 #C9583F #B0C93F

monochromatic

#1F386F #2D519E #3F6BC9 #6F90D6 #9FB5E4

Accessibility & contrast

On white

5.05

#3F6BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3F6BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BC9

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BC9	#FFFFFF	#000000	##FFFFFF
##3F6BC9	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)

#3A75CD

Deuteranopia (green-blind)

#1C69C7

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6bc9;
/* rgb */ color: rgb(63, 107, 201);
/* oklch */ color: oklch(54.6% 0.154 263.3);

Tailwind

colors: {
  custom: {
    50: '#8394da',
    500: '#3f6bc9',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bc9;
$custom-light: #8394da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bc9",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 201
  },
  "hsl": {
    "h": 220.87,
    "s": 56.098,
    "l": 51.765
  },
  "oklch": {
    "l": 0.54591,
    "c": 0.15408,
    "h": 263.3
  },
  "luminance": 0.15789
}

Semantic roles & 50–950 ramp

primary

#3F6BC9

secondary

#D0BD94

accent

#AF48DF

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6BC9

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

Preview Lab → · Contrast checker → · Palette generator →