#304DA0#304DA0

#304DA0 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.6% C 0.139 H 266.3°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#304DA0
RGB	rgb(48, 77, 160)
HSL	hsl(224, 54%, 41%)
HSV	hsv(224, 70%, 63%)
CMYK	cmyk(70%, 51.9%, 0%, 37.3%)
CIE-LAB	lab(34.95, 18.12, -48.30)
CIE-LCH	lch(34.95, 51.59, 290.56°)
OKLab	oklab(44.57% -0.0089 -0.1387)
OKLCH	oklch(44.57% 0.139 266.3)
XYZ	xyz(10.2158, 8.4732, 34.3480)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DA0 #A08330

analogous

#3085A0 #304DA0 #4B30A0

triadic

#304DA0 #A0304D #4DA030

tetradic

#304DA0 #A03085 #A08330 #30A04B

square

#304DA0 #A03085 #A08330 #30A04B

split-complementary

#304DA0 #A04B30 #85A030

monochromatic

#142042 #223671 #304DA0 #4667C7 #758ED6

Accessibility & contrast

On white

7.79

#304DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#304DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304DA0

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DA0	#FFFFFF	#000000	##FFFFFF
##304DA0	1.00	7.79	2.69	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A58A3

Deuteranopia (green-blind)

#004D9E

Tritanopia (blue-blind)

#00616F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304da0;
/* rgb */ color: rgb(48, 77, 160);
/* oklch */ color: oklch(44.6% 0.139 266.3);

Tailwind

colors: {
  custom: {
    50: '#767ebd',
    500: '#304da0',
    950: '#000000',
  },
}

SCSS

$custom: #304da0;
$custom-light: #767ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#304da0",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 160
  },
  "hsl": {
    "h": 224.464,
    "s": 53.846,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44574,
    "c": 0.13902,
    "h": 266.3
  },
  "luminance": 0.08474
}

Semantic roles & 50–950 ramp

primary

#304DA0

secondary

#BEA96E

accent

#B74BDD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304DA0

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

Preview Lab → · Contrast checker → · Palette generator →