#3357B7#3357B7

#3357B7 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.6% C 0.158 H 265.4°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#3357B7
RGB	rgb(51, 87, 183)
HSL	hsl(224, 56%, 46%)
HSV	hsv(224, 72%, 72%)
CMYK	cmyk(72.1%, 52.5%, 0%, 28.2%)
CIE-LAB	lab(39.48, 20.58, -54.64)
CIE-LCH	lch(39.48, 58.39, 290.64°)
OKLab	oklab(48.56% -0.0126 -0.1572)
OKLCH	oklch(48.56% 0.158 265.4)
XYZ	xyz(13.3177, 10.9377, 46.1999)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357B7 #B79333

analogous

#3399B7 #3357B7 #5133B7

triadic

#3357B7 #B73357 #57B733

tetradic

#3357B7 #B73399 #B79333 #33B751

square

#3357B7 #B73399 #B79333 #33B751

split-complementary

#3357B7 #B75133 #99B733

monochromatic

#182957 #264087 #3357B7 #5778D0 #879FDE

Accessibility & contrast

On white

6.59

#3357B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3357B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357B7

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357B7	#FFFFFF	#000000	##FFFFFF
##3357B7	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1763BA

Deuteranopia (green-blind)

#0057B5

Tritanopia (blue-blind)

#006E7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3357b7;
/* rgb */ color: rgb(51, 87, 183);
/* oklch */ color: oklch(48.6% 0.158 265.4);

Tailwind

colors: {
  custom: {
    50: '#7c85cd',
    500: '#3357b7',
    950: '#000000',
  },
}

SCSS

$custom: #3357b7;
$custom-light: #7c85cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3357b7",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 183
  },
  "hsl": {
    "h": 223.636,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.48561,
    "c": 0.15767,
    "h": 265.4
  },
  "luminance": 0.10939
}

Semantic roles & 50–950 ramp

primary

#3357B7

secondary

#C7B37F

accent

#B648E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3357B7

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

Preview Lab → · Contrast checker → · Palette generator →