#3357B2#3357B2

#3357B2 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.151 H 265.0°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3357B2
RGB	rgb(51, 87, 178)
HSL	hsl(223, 55%, 45%)
HSV	hsv(223, 71%, 70%)
CMYK	cmyk(71.3%, 51.1%, 0%, 30.2%)
CIE-LAB	lab(39.13, 18.71, -52.26)
CIE-LCH	lch(39.13, 55.51, 289.70°)
OKLab	oklab(48.19% -0.0132 -0.1502)
OKLCH	oklch(48.19% 0.151 265)
XYZ	xyz(12.8065, 10.7332, 43.5076)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357B2 #B28E33

analogous

#3397B2 #3357B2 #4E33B2

triadic

#3357B2 #B23357 #57B233

tetradic

#3357B2 #B23397 #B28E33 #33B24E

square

#3357B2 #B23397 #B28E33 #33B24E

split-complementary

#3357B2 #B24E33 #97B233

monochromatic

#182853 #254082 #3357B2 #5477CE #849DDC

Accessibility & contrast

On white

6.67

#3357B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3357B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357B2

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357B2	#FFFFFF	#000000	##FFFFFF
##3357B2	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2062B5

Deuteranopia (green-blind)

#0057B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3357b2;
/* rgb */ color: rgb(51, 87, 178);
/* oklch */ color: oklch(48.2% 0.151 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b85ca',
    500: '#3357b2',
    950: '#000000',
  },
}

SCSS

$custom: #3357b2;
$custom-light: #7b85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3357b2",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 178
  },
  "hsl": {
    "h": 222.992,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48186,
    "c": 0.15074,
    "h": 265
  },
  "luminance": 0.10735
}

Semantic roles & 50–950 ramp

primary

#3357B2

secondary

#C5B07C

accent

#B449DF

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3357B2

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

Preview Lab → · Contrast checker → · Palette generator →