#3357CD#3357CD

#3357CD is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.187 H 266.6°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#3357CD
RGB	rgb(51, 87, 205)
HSL	hsl(226, 61%, 50%)
HSV	hsv(226, 75%, 80%)
CMYK	cmyk(75.1%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(41.10, 28.74, -64.81)
CIE-LCH	lch(41.10, 70.89, 293.92°)
OKLab	oklab(50.3% -0.0112 -0.187)
OKLCH	oklch(50.3% 0.187 266.6)
XYZ	xyz(15.7890, 11.9262, 59.2156)
Luminance	0.1193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357CD #CDA933

analogous

#33A4CD #3357CD #5C33CD

triadic

#3357CD #CD3357 #57CD33

tetradic

#3357CD #CD33A4 #CDA933 #33CD5C

square

#3357CD #CD33A4 #CDA933 #33CD5C

split-complementary

#3357CD #CD5C33 #A4CD33

monochromatic

#1A2D6B #26429C #3357CD #647FD9 #95A8E5

Accessibility & contrast

On white

6.20

#3357CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3357CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357CD

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357CD	#FFFFFF	#000000	##FFFFFF
##3357CD	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D1

Deuteranopia (green-blind)

#005ACB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3357cd;
/* rgb */ color: rgb(51, 87, 205);
/* oklch */ color: oklch(50.3% 0.187 266.6);

Tailwind

colors: {
  custom: {
    50: '#8185dd',
    500: '#3357cd',
    950: '#000000',
  },
}

SCSS

$custom: #3357cd;
$custom-light: #8185dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3357cd",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 225.974,
    "s": 60.63,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50296,
    "c": 0.18738,
    "h": 266.6
  },
  "luminance": 0.11928
}

Semantic roles & 50–950 ramp

primary

#3357CD

secondary

#D0C08B

accent

#BE44E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3357CD

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

Preview Lab → · Contrast checker → · Palette generator →