#3351BF#3351BF

#3351BF is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.0% C 0.176 H 267.6°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3351BF
RGB	rgb(51, 81, 191)
HSL	hsl(227, 58%, 47%)
HSV	hsv(227, 73%, 75%)
CMYK	cmyk(73.3%, 57.6%, 0%, 25.1%)
CIE-LAB	lab(38.46, 27.47, -60.97)
CIE-LCH	lch(38.46, 66.87, 294.25°)
OKLab	oklab(47.98% -0.0074 -0.1759)
OKLCH	oklch(47.98% 0.176 267.6)
XYZ	xyz(13.7084, 10.3488, 50.5552)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3351BF #BFA133

analogous

#3397BF #3351BF #5B33BF

triadic

#3351BF #BF3351 #51BF33

tetradic

#3351BF #BF3397 #BFA133 #33BF5B

square

#3351BF #BF3397 #BFA133 #33BF5B

split-complementary

#3351BF #BF5B33 #97BF33

monochromatic

#19285E #263D8F #3351BF #5C75D3 #8C9EE0

Accessibility & contrast

On white

6.84

#3351BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3351BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3351BF

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3351BF	#FFFFFF	#000000	##FFFFFF
##3351BF	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C3

Deuteranopia (green-blind)

#0054BD

Tritanopia (blue-blind)

#006C80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3351bf;
/* rgb */ color: rgb(51, 81, 191);
/* oklch */ color: oklch(48.0% 0.176 267.6);

Tailwind

colors: {
  custom: {
    50: '#7e81d3',
    500: '#3351bf',
    950: '#000000',
  },
}

SCSS

$custom: #3351bf;
$custom-light: #7e81d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3351bf",
  "rgb": {
    "r": 51,
    "g": 81,
    "b": 191
  },
  "hsl": {
    "h": 227.143,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47983,
    "c": 0.17602,
    "h": 267.6
  },
  "luminance": 0.1035
}

Semantic roles & 50–950 ramp

primary

#3351BF

secondary

#CBBB83

accent

#C047E1

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3351BF

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

Preview Lab → · Contrast checker → · Palette generator →