#303FA1#303FA1

#303FA1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.158 H 271.2°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#303FA1
RGB	rgb(48, 63, 161)
HSL	hsl(232, 54%, 41%)
HSV	hsv(232, 70%, 63%)
CMYK	cmyk(70.2%, 60.9%, 0%, 36.9%)
CIE-LAB	lab(31.24, 27.81, -54.92)
CIE-LCH	lch(31.24, 61.56, 296.86°)
OKLab	oklab(41.82% 0.0032 -0.1584)
OKLCH	oklch(41.82% 0.158 271.2)
XYZ	xyz(9.4273, 6.7557, 34.5185)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303FA1 #A19230

analogous

#3077A1 #303FA1 #5930A1

triadic

#303FA1 #A1303F #3FA130

tetradic

#303FA1 #A13077 #A19230 #30A159

square

#303FA1 #A13077 #A19230 #30A159

split-complementary

#303FA1 #A15930 #77A130

monochromatic

#141A43 #222D72 #303FA1 #4657C8 #7582D6

Accessibility & contrast

On white

8.93

#303FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#303FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303FA1

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303FA1	#FFFFFF	#000000	##FFFFFF
##303FA1	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #303fa1;
/* rgb */ color: rgb(48, 63, 161);
/* oklch */ color: oklch(41.8% 0.158 271.2);

Tailwind

colors: {
  custom: {
    50: '#7774be',
    500: '#303fa1',
    950: '#000000',
  },
}

SCSS

$custom: #303fa1;
$custom-light: #7774be;
$custom-dark: #000000;

JSON

{
  "hex": "#303fa1",
  "rgb": {
    "r": 48,
    "g": 63,
    "b": 161
  },
  "hsl": {
    "h": 232.035,
    "s": 54.067,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41817,
    "c": 0.15841,
    "h": 271.2
  },
  "luminance": 0.06757
}

Semantic roles & 50–950 ramp

primary

#303FA1

secondary

#BEB36F

accent

#CA4ADD

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #303FA1

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

Preview Lab → · Contrast checker → · Palette generator →