#3B6FCB#3B6FCB

#3B6FCB is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.4% C 0.153 H 260.9°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3B6FCB
RGB	rgb(59, 111, 203)
HSL	hsl(218, 58%, 51%)
HSV	hsv(218, 71%, 80%)
CMYK	cmyk(70.9%, 45.3%, 0%, 20.4%)
CIE-LAB	lab(47.76, 13.69, -52.87)
CIE-LCH	lch(47.76, 54.61, 284.51°)
OKLab	oklab(55.41% -0.0244 -0.1514)
OKLCH	oklch(55.41% 0.153 260.9)
XYZ	xyz(18.2637, 16.6085, 58.7316)
Luminance	0.1661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B6FCB #CB973B

analogous

#3BB7CB #3B6FCB #4F3BCB

triadic

#3B6FCB #CB3B6F #6FCB3B

tetradic

#3B6FCB #CB3BB7 #CB973B #3BCB4F

square

#3B6FCB #CB3BB7 #CB973B #3BCB4F

split-complementary

#3B6FCB #CB4F3B #B7CB3B

monochromatic

#1D3B6E #2A549F #3B6FCB #6B93D8 #9CB6E5

Accessibility & contrast

On white

4.86

#3B6FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3B6FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B6FCB

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B6FCB	#FFFFFF	#000000	##FFFFFF
##3B6FCB	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4078CE

Deuteranopia (green-blind)

#236BC9

Tritanopia (blue-blind)

#008593

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3b6fcb;
/* rgb */ color: rgb(59, 111, 203);
/* oklch */ color: oklch(55.4% 0.153 260.9);

Tailwind

colors: {
  custom: {
    50: '#8297db',
    500: '#3b6fcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b6fcb;
$custom-light: #8297db;
$custom-dark: #000000;

JSON

{
  "hex": "#3b6fcb",
  "rgb": {
    "r": 59,
    "g": 111,
    "b": 203
  },
  "hsl": {
    "h": 218.333,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.55406,
    "c": 0.15335,
    "h": 260.9
  },
  "luminance": 0.1661
}

Semantic roles & 50–950 ramp

primary

#3B6FCB

secondary

#D1BA91

accent

#A947E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3B6FCB

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

Preview Lab → · Contrast checker → · Palette generator →