#304FBD#304FBD

#304FBD is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.3% C 0.177 H 267.2°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#304FBD
RGB	rgb(48, 79, 189)
HSL	hsl(227, 59%, 46%)
HSV	hsv(227, 75%, 74%)
CMYK	cmyk(74.6%, 58.2%, 0%, 25.9%)
CIE-LAB	lab(37.65, 27.66, -61.13)
CIE-LCH	lch(37.65, 67.09, 294.35°)
OKLab	oklab(47.29% -0.0086 -0.1764)
OKLCH	oklch(47.29% 0.177 267.2)
XYZ	xyz(13.1970, 9.8930, 49.3483)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FBD #BD9E30

analogous

#3096BD #304FBD #5830BD

triadic

#304FBD #BD304F #4FBD30

tetradic

#304FBD #BD3096 #BD9E30 #30BD58

square

#304FBD #BD3096 #BD9E30 #30BD58

split-complementary

#304FBD #BD5830 #96BD30

monochromatic

#17265B #243B8C #304FBD #5672D4 #879BE0

Accessibility & contrast

On white

7.05

#304FBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#304FBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FBD

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FBD	#FFFFFF	#000000	##FFFFFF
##304FBD	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC1

Deuteranopia (green-blind)

#0052BB

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #304fbd;
/* rgb */ color: rgb(48, 79, 189);
/* oklch */ color: oklch(47.3% 0.177 267.2);

Tailwind

colors: {
  custom: {
    50: '#7d7fd2',
    500: '#304fbd',
    950: '#000000',
  },
}

SCSS

$custom: #304fbd;
$custom-light: #7d7fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#304fbd",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 189
  },
  "hsl": {
    "h": 226.809,
    "s": 59.494,
    "l": 46.471
  },
  "oklch": {
    "l": 0.4729,
    "c": 0.17662,
    "h": 267.2
  },
  "luminance": 0.09894
}

Semantic roles & 50–950 ramp

primary

#304FBD

secondary

#CABA7F

accent

#C045E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #304FBD

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

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