#3357BF#3357BF

#3357BF is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.169 H 265.9°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#3357BF
RGB	rgb(51, 87, 191)
HSL	hsl(225, 58%, 47%)
HSV	hsv(225, 73%, 75%)
CMYK	cmyk(73.3%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(40.05, 23.56, -58.39)
CIE-LCH	lch(40.05, 62.97, 291.97°)
OKLab	oklab(49.18% -0.012 -0.1682)
OKLCH	oklch(49.18% 0.169 265.9)
XYZ	xyz(14.1741, 11.2803, 50.7104)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357BF #BF9B33

analogous

#339DBF #3357BF #5533BF

triadic

#3357BF #BF3357 #57BF33

tetradic

#3357BF #BF339D #BF9B33 #33BF55

square

#3357BF #BF339D #BF9B33 #33BF55

split-complementary

#3357BF #BF5533 #9DBF33

monochromatic

#192B5E #26418F #3357BF #5C7BD3 #8CA2E0

Accessibility & contrast

On white

6.45

#3357BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3357BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357BF

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357BF	#FFFFFF	#000000	##FFFFFF
##3357BF	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3357bf;
/* rgb */ color: rgb(51, 87, 191);
/* oklch */ color: oklch(49.2% 0.169 265.9);

Tailwind

colors: {
  custom: {
    50: '#7e85d3',
    500: '#3357bf',
    950: '#000000',
  },
}

SCSS

$custom: #3357bf;
$custom-light: #7e85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3357bf",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 224.571,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.49176,
    "c": 0.16861,
    "h": 265.9
  },
  "luminance": 0.11282
}

Semantic roles & 50–950 ramp

primary

#3357BF

secondary

#CBB883

accent

#B947E1

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3357BF

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

Preview Lab → · Contrast checker → · Palette generator →