#304FC3#304FC3

#304FC3 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.185 H 267.4°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#304FC3
RGB	rgb(48, 79, 195)
HSL	hsl(227, 60%, 48%)
HSV	hsv(227, 75%, 76%)
CMYK	cmyk(75.4%, 59.5%, 0%, 23.5%)
CIE-LAB	lab(38.13, 29.88, -63.86)
CIE-LCH	lch(38.13, 70.50, 295.08°)
OKLab	oklab(47.8% -0.0085 -0.1844)
OKLCH	oklch(47.8% 0.185 267.4)
XYZ	xyz(13.8618, 10.1590, 52.8495)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FC3 #C3A430

analogous

#3098C3 #304FC3 #5A30C3

triadic

#304FC3 #C3304F #4FC330

tetradic

#304FC3 #C33098 #C3A430 #30C35A

square

#304FC3 #C33098 #C3A430 #30C35A

split-complementary

#304FC3 #C35A30 #98C330

monochromatic

#182761 #243B92 #304FC3 #5A74D6 #8B9DE2

Accessibility & contrast

On white

6.93

#304FC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#304FC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #304FC3

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FC3	#FFFFFF	#000000	##FFFFFF
##304FC3	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C7

Deuteranopia (green-blind)

#0053C1

Tritanopia (blue-blind)

#006C81

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #304fc3;
/* rgb */ color: rgb(48, 79, 195);
/* oklch */ color: oklch(47.8% 0.185 267.4);

Tailwind

colors: {
  custom: {
    50: '#7e80d6',
    500: '#304fc3',
    950: '#000000',
  },
}

SCSS

$custom: #304fc3;
$custom-light: #7e80d6;
$custom-dark: #000000;

JSON

{
  "hex": "#304fc3",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 195
  },
  "hsl": {
    "h": 227.347,
    "s": 60.494,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47795,
    "c": 0.18462,
    "h": 267.4
  },
  "luminance": 0.1016
}

Semantic roles & 50–950 ramp

primary

#304FC3

secondary

#CCBD82

accent

#C244E4

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #304FC3

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

Preview Lab → · Contrast checker → · Palette generator →