#304EA0#304EA0

#304EA0 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.8% C 0.138 H 265.9°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#304EA0
RGB	rgb(48, 78, 160)
HSL	hsl(224, 54%, 41%)
HSV	hsv(224, 70%, 63%)
CMYK	cmyk(70%, 51.2%, 0%, 37.3%)
CIE-LAB	lab(35.23, 17.45, -47.85)
CIE-LCH	lch(35.23, 50.93, 290.04°)
OKLab	oklab(44.79% -0.0098 -0.1374)
OKLCH	oklch(44.79% 0.138 265.9)
XYZ	xyz(10.2863, 8.6142, 34.3715)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304EA0 #A08230

analogous

#3086A0 #304EA0 #4A30A0

triadic

#304EA0 #A0304E #4EA030

tetradic

#304EA0 #A03086 #A08230 #30A04A

square

#304EA0 #A03086 #A08230 #30A04A

split-complementary

#304EA0 #A04A30 #86A030

monochromatic

#142042 #223771 #304EA0 #4668C7 #758FD6

Accessibility & contrast

On white

7.71

#304EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#304EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304EA0

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304EA0	#FFFFFF	#000000	##FFFFFF
##304EA0	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E58A3

Deuteranopia (green-blind)

#004E9E

Tritanopia (blue-blind)

#00616F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304ea0;
/* rgb */ color: rgb(48, 78, 160);
/* oklch */ color: oklch(44.8% 0.138 265.9);

Tailwind

colors: {
  custom: {
    50: '#767fbd',
    500: '#304ea0',
    950: '#000000',
  },
}

SCSS

$custom: #304ea0;
$custom-light: #767fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#304ea0",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 160
  },
  "hsl": {
    "h": 223.929,
    "s": 53.846,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44788,
    "c": 0.13773,
    "h": 265.9
  },
  "luminance": 0.08615
}

Semantic roles & 50–950 ramp

primary

#304EA0

secondary

#BEA86E

accent

#B64BDD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #304EA0

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

Preview Lab → · Contrast checker → · Palette generator →