#304AA8#304AA8

#304AA8 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.154 H 267.9°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#304AA8
RGB	rgb(48, 74, 168)
HSL	hsl(227, 56%, 42%)
HSV	hsv(227, 71%, 66%)
CMYK	cmyk(71.4%, 56%, 0%, 34.1%)
CIE-LAB	lab(34.71, 23.12, -53.49)
CIE-LCH	lch(34.71, 58.27, 293.37°)
OKLab	oklab(44.58% -0.0056 -0.154)
OKLCH	oklch(44.58% 0.154 267.9)
XYZ	xyz(10.7331, 8.3520, 38.0846)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304AA8 #A88E30

analogous

#3086A8 #304AA8 #5230A8

triadic

#304AA8 #A8304A #4AA830

tetradic

#304AA8 #A83086 #A88E30 #30A852

square

#304AA8 #A83086 #A88E30 #30A852

split-complementary

#304AA8 #A85230 #86A830

monochromatic

#152049 #223578 #304AA8 #4A66CB #7A8ED9

Accessibility & contrast

On white

7.86

#304AA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#304AA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304AA8

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304AA8	#FFFFFF	#000000	##FFFFFF
##304AA8	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AB

Deuteranopia (green-blind)

#004CA6

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304aa8;
/* rgb */ color: rgb(48, 74, 168);
/* oklch */ color: oklch(44.6% 0.154 267.9);

Tailwind

colors: {
  custom: {
    50: '#787cc3',
    500: '#304aa8',
    950: '#000000',
  },
}

SCSS

$custom: #304aa8;
$custom-light: #787cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#304aa8",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 168
  },
  "hsl": {
    "h": 227,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44575,
    "c": 0.15415,
    "h": 267.9
  },
  "luminance": 0.08353
}

Semantic roles & 50–950 ramp

primary

#304AA8

secondary

#C1B073

accent

#BE49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304AA8

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

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