#304B96#304B96

#304B96 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.4% C 0.127 H 266.3°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#304B96
RGB	rgb(48, 75, 150)
HSL	hsl(224, 52%, 39%)
HSV	hsv(224, 68%, 59%)
CMYK	cmyk(68%, 50%, 0%, 41.2%)
CIE-LAB	lab(33.69, 15.69, -44.29)
CIE-LCH	lch(33.69, 46.99, 289.51°)
OKLab	oklab(43.4% -0.0082 -0.1269)
OKLCH	oklch(43.4% 0.127 266.3)
XYZ	xyz(9.2381, 7.8617, 29.8789)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304B96 #967B30

analogous

#307E96 #304B96 #483096

triadic

#304B96 #96304B #4B9630

tetradic

#304B96 #96307E #967B30 #309648

square

#304B96 #96307E #967B30 #309648

split-complementary

#304B96 #964830 #7E9630

monochromatic

#121D39 #213468 #304B96 #4163C2 #6F89D1

Accessibility & contrast

On white

8.16

#304B96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#304B96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304B96

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304B96	#FFFFFF	#000000	##FFFFFF
##304B96	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225499

Deuteranopia (green-blind)

#064B94

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #304b96;
/* rgb */ color: rgb(48, 75, 150);
/* oklch */ color: oklch(43.4% 0.127 266.3);

Tailwind

colors: {
  custom: {
    50: '#747cb5',
    500: '#304b96',
    950: '#000000',
  },
}

SCSS

$custom: #304b96;
$custom-light: #747cb5;
$custom-dark: #000000;

JSON

{
  "hex": "#304b96",
  "rgb": {
    "r": 48,
    "g": 75,
    "b": 150
  },
  "hsl": {
    "h": 224.118,
    "s": 51.515,
    "l": 38.824
  },
  "oklch": {
    "l": 0.43398,
    "c": 0.12722,
    "h": 266.3
  },
  "luminance": 0.07863
}

Semantic roles & 50–950 ramp

primary

#304B96

secondary

#B9A469

accent

#B54DDB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #304B96

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

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