#304EB6#304EB6

#304EB6 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.5% C 0.168 H 267.2°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#304EB6
RGB	rgb(48, 78, 182)
HSL	hsl(227, 58%, 45%)
HSV	hsv(227, 74%, 71%)
CMYK	cmyk(73.6%, 57.1%, 0%, 28.6%)
CIE-LAB	lab(36.84, 25.71, -58.33)
CIE-LCH	lch(36.84, 63.74, 293.79°)
OKLab	oklab(46.52% -0.0081 -0.1682)
OKLCH	oklch(46.52% 0.168 267.2)
XYZ	xyz(12.3839, 9.4532, 45.4189)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304EB6 #B69830

analogous

#3091B6 #304EB6 #5530B6

triadic

#304EB6 #B6304E #4EB630

tetradic

#304EB6 #B63091 #B69830 #30B655

square

#304EB6 #B63091 #B69830 #30B655

split-complementary

#304EB6 #B65530 #91B630

monochromatic

#162455 #233986 #304EB6 #526ED1 #8297DE

Accessibility & contrast

On white

7.26

#304EB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#304EB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304EB6

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304EB6	#FFFFFF	#000000	##FFFFFF
##304EB6	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBA

Deuteranopia (green-blind)

#0051B4

Tritanopia (blue-blind)

#00687A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #304eb6;
/* rgb */ color: rgb(48, 78, 182);
/* oklch */ color: oklch(46.5% 0.168 267.2);

Tailwind

colors: {
  custom: {
    50: '#7b7fcd',
    500: '#304eb6',
    950: '#000000',
  },
}

SCSS

$custom: #304eb6;
$custom-light: #7b7fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#304eb6",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 182
  },
  "hsl": {
    "h": 226.567,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46515,
    "c": 0.1684,
    "h": 267.2
  },
  "luminance": 0.09455
}

Semantic roles & 50–950 ramp

primary

#304EB6

secondary

#C7B67B

accent

#BF46E1

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #304EB6

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

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