#3357C0#3357C0

#3357C0 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.3% C 0.170 H 266.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3357C0
RGB	rgb(51, 87, 192)
HSL	hsl(225, 58%, 48%)
HSV	hsv(225, 73%, 75%)
CMYK	cmyk(73.4%, 54.7%, 0%, 24.7%)
CIE-LAB	lab(40.12, 23.93, -58.86)
CIE-LCH	lch(40.12, 63.54, 292.13°)
OKLab	oklab(49.25% -0.0119 -0.1696)
OKLCH	oklch(49.25% 0.17 266)
XYZ	xyz(14.2845, 11.3244, 51.2920)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357C0 #C09C33

analogous

#339DC0 #3357C0 #5633C0

triadic

#3357C0 #C03357 #57C033

tetradic

#3357C0 #C0339D #C09C33 #33C056

square

#3357C0 #C0339D #C09C33 #33C056

split-complementary

#3357C0 #C05633 #9DC033

monochromatic

#192B5F #264190 #3357C0 #5C7BD4 #8DA2E1

Accessibility & contrast

On white

6.43

#3357C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3357C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357C0

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357C0	#FFFFFF	#000000	##FFFFFF
##3357C0	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C4

Deuteranopia (green-blind)

#0058BE

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3357c0;
/* rgb */ color: rgb(51, 87, 192);
/* oklch */ color: oklch(49.3% 0.170 266.0);

Tailwind

colors: {
  custom: {
    50: '#7e85d4',
    500: '#3357c0',
    950: '#000000',
  },
}

SCSS

$custom: #3357c0;
$custom-light: #7e85d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3357c0",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 192
  },
  "hsl": {
    "h": 224.681,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.49254,
    "c": 0.16998,
    "h": 266
  },
  "luminance": 0.11326
}

Semantic roles & 50–950 ramp

primary

#3357C0

secondary

#CBB984

accent

#BA47E1

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3357C0

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

Preview Lab → · Contrast checker → · Palette generator →