#304ABB#304ABB

#304ABB is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.2% C 0.180 H 268.4°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#304ABB
RGB	rgb(48, 74, 187)
HSL	hsl(229, 59%, 46%)
HSV	hsv(229, 74%, 73%)
CMYK	cmyk(74.3%, 60.4%, 0%, 26.7%)
CIE-LAB	lab(36.20, 30.18, -62.32)
CIE-LCH	lch(36.20, 69.24, 295.84°)
OKLab	oklab(46.16% -0.0051 -0.18)
OKLCH	oklch(46.16% 0.18 268.4)
XYZ	xyz(12.6342, 9.1124, 48.0971)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304ABB #BBA130

analogous

#308FBB #304ABB #5B30BB

triadic

#304ABB #BB304A #4ABB30

tetradic

#304ABB #BB308F #BBA130 #30BB5B

square

#304ABB #BB308F #BBA130 #30BB5B

split-complementary

#304ABB #BB5B30 #8FBB30

monochromatic

#17235A #23378A #304ABB #556DD3 #8696E0

Accessibility & contrast

On white

7.44

#304ABB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#304ABB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304ABB

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304ABB	#FFFFFF	#000000	##FFFFFF
##304ABB	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBF

Deuteranopia (green-blind)

#004FB9

Tritanopia (blue-blind)

#00677B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304abb;
/* rgb */ color: rgb(48, 74, 187);
/* oklch */ color: oklch(46.2% 0.180 268.4);

Tailwind

colors: {
  custom: {
    50: '#7c7cd0',
    500: '#304abb',
    950: '#000000',
  },
}

SCSS

$custom: #304abb;
$custom-light: #7c7cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#304abb",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 187
  },
  "hsl": {
    "h": 228.777,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.4616,
    "c": 0.18004,
    "h": 268.4
  },
  "luminance": 0.09114
}

Semantic roles & 50–950 ramp

primary

#304ABB

secondary

#C9BB7D

accent

#C545E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #304ABB

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

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