#304DC9#304DC9

#304DC9 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.9% C 0.195 H 267.9°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#304DC9
RGB	rgb(48, 77, 201)
HSL	hsl(229, 61%, 49%)
HSV	hsv(229, 76%, 79%)
CMYK	cmyk(76.1%, 61.7%, 0%, 21.2%)
CIE-LAB	lab(38.11, 33.38, -67.37)
CIE-LCH	lch(38.11, 75.18, 296.36°)
OKLab	oklab(47.94% -0.0072 -0.1947)
OKLCH	oklch(47.94% 0.195 267.9)
XYZ	xyz(14.4118, 10.1516, 56.4469)
Luminance	0.1015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DC9 #C9AC30

analogous

#309AC9 #304DC9 #5F30C9

triadic

#304DC9 #C9304D #4DC930

tetradic

#304DC9 #C9309A #C9AC30 #30C95F

square

#304DC9 #C9309A #C9AC30 #30C95F

split-complementary

#304DC9 #C95F30 #9AC930

monochromatic

#182766 #243A98 #304DC9 #5E75D8 #8F9FE4

Accessibility & contrast

On white

6.93

#304DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#304DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #304DC9

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DC9	#FFFFFF	#000000	##FFFFFF
##304DC9	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)

#0061CD

Deuteranopia (green-blind)

#0053C7

Tritanopia (blue-blind)

#006D84

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #304dc9;
/* rgb */ color: rgb(48, 77, 201);
/* oklch */ color: oklch(47.9% 0.195 267.9);

Tailwind

colors: {
  custom: {
    50: '#7f7eda',
    500: '#304dc9',
    950: '#000000',
  },
}

SCSS

$custom: #304dc9;
$custom-light: #7f7eda;
$custom-dark: #000000;

JSON

{
  "hex": "#304dc9",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 201
  },
  "hsl": {
    "h": 228.627,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47938,
    "c": 0.19488,
    "h": 267.9
  },
  "luminance": 0.10153
}

Semantic roles & 50–950 ramp

primary

#304DC9

secondary

#CFC186

accent

#C643E5

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #304DC9

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

Preview Lab → · Contrast checker → · Palette generator →