#304BAB#304BAB

#304BAB is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.0% C 0.157 H 267.7°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#304BAB
RGB	rgb(48, 75, 171)
HSL	hsl(227, 56%, 43%)
HSV	hsv(227, 72%, 67%)
CMYK	cmyk(71.9%, 56.1%, 0%, 32.9%)
CIE-LAB	lab(35.20, 23.58, -54.48)
CIE-LCH	lch(35.20, 59.36, 293.40°)
OKLab	oklab(45.02% -0.0063 -0.1569)
OKLCH	oklch(45.02% 0.157 267.7)
XYZ	xyz(11.0831, 8.5997, 39.5960)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304BAB #AB9030

analogous

#3088AB #304BAB #5230AB

triadic

#304BAB #AB304B #4BAB30

tetradic

#304BAB #AB3088 #AB9030 #30AB52

square

#304BAB #AB3088 #AB9030 #30AB52

split-complementary

#304BAB #AB5230 #88AB30

monochromatic

#15214B #23367B #304BAB #4C68CD #7B90DA

Accessibility & contrast

On white

7.72

#304BAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#304BAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304BAB

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304BAB	#FFFFFF	#000000	##FFFFFF
##304BAB	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AE

Deuteranopia (green-blind)

#004DA9

Tritanopia (blue-blind)

#006273

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304bab;
/* rgb */ color: rgb(48, 75, 171);
/* oklch */ color: oklch(45.0% 0.157 267.7);

Tailwind

colors: {
  custom: {
    50: '#797cc5',
    500: '#304bab',
    950: '#000000',
  },
}

SCSS

$custom: #304bab;
$custom-light: #797cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#304bab",
  "rgb": {
    "r": 48,
    "g": 75,
    "b": 171
  },
  "hsl": {
    "h": 226.829,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45019,
    "c": 0.15705,
    "h": 267.7
  },
  "luminance": 0.08601
}

Semantic roles & 50–950 ramp

primary

#304BAB

secondary

#C3B174

accent

#BE48DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304BAB

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

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