#304EAA#304EAA

#304EAA is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.6% C 0.152 H 266.7°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#304EAA
RGB	rgb(48, 78, 170)
HSL	hsl(225, 56%, 43%)
HSV	hsv(225, 72%, 67%)
CMYK	cmyk(71.8%, 54.1%, 0%, 33.3%)
CIE-LAB	lab(35.94, 21.21, -52.68)
CIE-LCH	lch(35.94, 56.79, 291.93°)
OKLab	oklab(45.55% -0.0089 -0.1516)
OKLCH	oklch(45.55% 0.152 266.7)
XYZ	xyz(11.1965, 8.9783, 39.1653)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304EAA #AA8C30

analogous

#308BAA #304EAA #4F30AA

triadic

#304EAA #AA304E #4EAA30

tetradic

#304EAA #AA308B #AA8C30 #30AA4F

square

#304EAA #AA308B #AA8C30 #30AA4F

split-complementary

#304EAA #AA4F30 #8BAA30

monochromatic

#15224B #23387A #304EAA #4B6BCC #7B92DA

Accessibility & contrast

On white

7.51

#304EAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#304EAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304EAA

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304EAA	#FFFFFF	#000000	##FFFFFF
##304EAA	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#085AAD

Deuteranopia (green-blind)

#004FA8

Tritanopia (blue-blind)

#006474

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304eaa;
/* rgb */ color: rgb(48, 78, 170);
/* oklch */ color: oklch(45.6% 0.152 266.7);

Tailwind

colors: {
  custom: {
    50: '#787fc4',
    500: '#304eaa',
    950: '#000000',
  },
}

SCSS

$custom: #304eaa;
$custom-light: #787fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#304eaa",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 170
  },
  "hsl": {
    "h": 225.246,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45554,
    "c": 0.15185,
    "h": 266.7
  },
  "luminance": 0.08979
}

Semantic roles & 50–950 ramp

primary

#304EAA

secondary

#C2AF74

accent

#BA49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #304EAA

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

Preview Lab → · Contrast checker → · Palette generator →