#3357D0#3357D0

#3357D0 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.191 H 266.7°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3357D0
RGB	rgb(51, 87, 208)
HSL	hsl(226, 63%, 51%)
HSV	hsv(226, 75%, 82%)
CMYK	cmyk(75.5%, 58.2%, 0%, 18.4%)
CIE-LAB	lab(41.33, 29.85, -66.15)
CIE-LCH	lch(41.33, 72.58, 294.28°)
OKLab	oklab(50.54% -0.0111 -0.191)
OKLCH	oklch(50.54% 0.191 266.7)
XYZ	xyz(16.1546, 12.0725, 61.1411)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357D0 #D0AC33

analogous

#33A5D0 #3357D0 #5D33D0

triadic

#3357D0 #D03357 #57D033

tetradic

#3357D0 #D033A5 #D0AC33 #33D05D

square

#3357D0 #D033A5 #D0AC33 #33D05D

split-complementary

#3357D0 #D05D33 #A5D033

monochromatic

#1A2D6F #2541A1 #3357D0 #6580DB #96A9E7

Accessibility & contrast

On white

6.15

#3357D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3357D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357D0

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357D0	#FFFFFF	#000000	##FFFFFF
##3357D0	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D4

Deuteranopia (green-blind)

#005ACE

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3357d0;
/* rgb */ color: rgb(51, 87, 208);
/* oklch */ color: oklch(50.5% 0.191 266.7);

Tailwind

colors: {
  custom: {
    50: '#8186df',
    500: '#3357d0',
    950: '#000000',
  },
}

SCSS

$custom: #3357d0;
$custom-light: #8186df;
$custom-dark: #000000;

JSON

{
  "hex": "#3357d0",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 208
  },
  "hsl": {
    "h": 226.242,
    "s": 62.55,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50543,
    "c": 0.19133,
    "h": 266.7
  },
  "luminance": 0.12074
}

Semantic roles & 50–950 ramp

primary

#3357D0

secondary

#D2C28D

accent

#C042E6

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3357D0

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

Preview Lab → · Contrast checker → · Palette generator →