#3357BC#3357BC

#3357BC is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.9% C 0.165 H 265.8°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3357BC
RGB	rgb(51, 87, 188)
HSL	hsl(224, 57%, 47%)
HSV	hsv(224, 73%, 74%)
CMYK	cmyk(72.9%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(39.83, 22.44, -56.99)
CIE-LCH	lch(39.83, 61.25, 291.49°)
OKLab	oklab(48.94% -0.0122 -0.1641)
OKLCH	oklch(48.94% 0.165 265.8)
XYZ	xyz(13.8474, 11.1496, 48.9895)
Luminance	0.1115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357BC #BC9833

analogous

#339BBC #3357BC #5433BC

triadic

#3357BC #BC3357 #57BC33

tetradic

#3357BC #BC339B #BC9833 #33BC54

square

#3357BC #BC339B #BC9833 #33BC54

split-complementary

#3357BC #BC5433 #9BBC33

monochromatic

#192A5C #26418C #3357BC #5A7AD2 #8AA0DF

Accessibility & contrast

On white

6.50

#3357BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3357BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357BC

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357BC	#FFFFFF	#000000	##FFFFFF
##3357BC	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0864C0

Deuteranopia (green-blind)

#0058BA

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3357bc;
/* rgb */ color: rgb(51, 87, 188);
/* oklch */ color: oklch(48.9% 0.165 265.8);

Tailwind

colors: {
  custom: {
    50: '#7d85d1',
    500: '#3357bc',
    950: '#000000',
  },
}

SCSS

$custom: #3357bc;
$custom-light: #7d85d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3357bc",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 224.234,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48943,
    "c": 0.16453,
    "h": 265.8
  },
  "luminance": 0.11151
}

Semantic roles & 50–950 ramp

primary

#3357BC

secondary

#C9B681

accent

#B847E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3357BC

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

Preview Lab → · Contrast checker → · Palette generator →