#304DBF#304DBF

#304DBF is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.182 H 267.7°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#304DBF
RGB	rgb(48, 77, 191)
HSL	hsl(228, 60%, 47%)
HSV	hsv(228, 75%, 75%)
CMYK	cmyk(74.9%, 59.7%, 0%, 25.1%)
CIE-LAB	lab(37.29, 29.70, -62.88)
CIE-LCH	lch(37.29, 69.54, 295.28°)
OKLab	oklab(47.07% -0.0072 -0.1816)
OKLCH	oklch(47.07% 0.182 267.7)
XYZ	xyz(13.2735, 9.6963, 50.4521)
Luminance	0.0970 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DBF #BFA230

analogous

#3095BF #304DBF #5A30BF

triadic

#304DBF #BF304D #4DBF30

tetradic

#304DBF #BF3095 #BFA230 #30BF5A

square

#304DBF #BF3095 #BFA230 #30BF5A

split-complementary

#304DBF #BF5A30 #95BF30

monochromatic

#17265D #24398E #304DBF #5771D5 #889AE1

Accessibility & contrast

On white

7.14

#304DBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#304DBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304DBF

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DBF	#FFFFFF	#000000	##FFFFFF
##304DBF	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC3

Deuteranopia (green-blind)

#0051BD

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #304dbf;
/* rgb */ color: rgb(48, 77, 191);
/* oklch */ color: oklch(47.1% 0.182 267.7);

Tailwind

colors: {
  custom: {
    50: '#7d7ed3',
    500: '#304dbf',
    950: '#000000',
  },
}

SCSS

$custom: #304dbf;
$custom-light: #7d7ed3;
$custom-dark: #000000;

JSON

{
  "hex": "#304dbf",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 191
  },
  "hsl": {
    "h": 227.832,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47073,
    "c": 0.18173,
    "h": 267.7
  },
  "luminance": 0.09698
}

Semantic roles & 50–950 ramp

primary

#304DBF

secondary

#CBBC80

accent

#C345E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #304DBF

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

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