#304CA0#304CA0

#304CA0 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.4% C 0.140 H 266.7°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#304CA0
RGB	rgb(48, 76, 160)
HSL	hsl(225, 54%, 41%)
HSV	hsv(225, 70%, 63%)
CMYK	cmyk(70%, 52.5%, 0%, 37.3%)
CIE-LAB	lab(34.67, 18.78, -48.76)
CIE-LCH	lch(34.67, 52.25, 291.07°)
OKLab	oklab(44.36% -0.008 -0.1401)
OKLCH	oklch(44.36% 0.14 266.7)
XYZ	xyz(10.1463, 8.3343, 34.3249)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CA0 #A08430

analogous

#3084A0 #304CA0 #4C30A0

triadic

#304CA0 #A0304C #4CA030

tetradic

#304CA0 #A03084 #A08430 #30A04C

square

#304CA0 #A03084 #A08430 #30A04C

split-complementary

#304CA0 #A04C30 #84A030

monochromatic

#141F42 #223671 #304CA0 #4666C7 #758DD6

Accessibility & contrast

On white

7.87

#304CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#304CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CA0

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CA0	#FFFFFF	#000000	##FFFFFF
##304CA0	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1757A3

Deuteranopia (green-blind)

#004D9E

Tritanopia (blue-blind)

#00606E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304ca0;
/* rgb */ color: rgb(48, 76, 160);
/* oklch */ color: oklch(44.4% 0.140 266.7);

Tailwind

colors: {
  custom: {
    50: '#767dbd',
    500: '#304ca0',
    950: '#000000',
  },
}

SCSS

$custom: #304ca0;
$custom-light: #767dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#304ca0",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 160
  },
  "hsl": {
    "h": 225,
    "s": 53.846,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44362,
    "c": 0.14031,
    "h": 266.7
  },
  "luminance": 0.08335
}

Semantic roles & 50–950 ramp

primary

#304CA0

secondary

#BEAA6E

accent

#B94BDD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304CA0

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

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