#304CAB#304CAB

#304CAB is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.2% C 0.156 H 267.4°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#304CAB
RGB	rgb(48, 76, 171)
HSL	hsl(226, 56%, 43%)
HSV	hsv(226, 72%, 67%)
CMYK	cmyk(71.9%, 55.6%, 0%, 32.9%)
CIE-LAB	lab(35.47, 22.91, -54.04)
CIE-LCH	lch(35.47, 58.70, 292.98°)
OKLab	oklab(45.22% -0.0071 -0.1556)
OKLCH	oklch(45.22% 0.156 267.4)
XYZ	xyz(11.1515, 8.7364, 39.6188)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CAB #AB8F30

analogous

#308AAB #304CAB #5130AB

triadic

#304CAB #AB304C #4CAB30

tetradic

#304CAB #AB308A #AB8F30 #30AB51

square

#304CAB #AB308A #AB8F30 #30AB51

split-complementary

#304CAB #AB5130 #8AAB30

monochromatic

#15224B #23377B #304CAB #4C69CD #7B91DA

Accessibility & contrast

On white

7.64

#304CAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#304CAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CAB

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CAB	#FFFFFF	#000000	##FFFFFF
##304CAB	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AE

Deuteranopia (green-blind)

#004EA9

Tritanopia (blue-blind)

#006374

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304cab;
/* rgb */ color: rgb(48, 76, 171);
/* oklch */ color: oklch(45.2% 0.156 267.4);

Tailwind

colors: {
  custom: {
    50: '#797dc5',
    500: '#304cab',
    950: '#000000',
  },
}

SCSS

$custom: #304cab;
$custom-light: #797dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#304cab",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 171
  },
  "hsl": {
    "h": 226.341,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45222,
    "c": 0.15578,
    "h": 267.4
  },
  "luminance": 0.08738
}

Semantic roles & 50–950 ramp

primary

#304CAB

secondary

#C3B174

accent

#BD48DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304CAB

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

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