#303EBC#303EBC

#303EBC is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.1% C 0.195 H 270.7°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#303EBC
RGB	rgb(48, 62, 188)
HSL	hsl(234, 59%, 46%)
HSV	hsv(234, 74%, 74%)
CMYK	cmyk(74.5%, 67%, 0%, 26.3%)
CIE-LAB	lab(33.36, 38.20, -67.56)
CIE-LCH	lch(33.36, 77.61, 299.48°)
OKLab	oklab(44.1% 0.0025 -0.1954)
OKLCH	oklch(44.1% 0.195 270.7)
XYZ	xyz(12.0156, 7.7032, 48.4208)
Luminance	0.0770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303EBC #BCAE30

analogous

#3084BC #303EBC #6830BC

triadic

#303EBC #BC303E #3EBC30

tetradic

#303EBC #BC3084 #BCAE30 #30BC68

square

#303EBC #BC3084 #BCAE30 #30BC68

split-complementary

#303EBC #BC6830 #84BC30

monochromatic

#171E5A #242E8B #303EBC #5562D4 #868FE0

Accessibility & contrast

On white

8.27

#303EBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#303EBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303EBC

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303EBC	#FFFFFF	#000000	##FFFFFF
##303EBC	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #303ebc;
/* rgb */ color: rgb(48, 62, 188);
/* oklch */ color: oklch(44.1% 0.195 270.7);

Tailwind

colors: {
  custom: {
    50: '#7e73d1',
    500: '#303ebc',
    950: '#000000',
  },
}

SCSS

$custom: #303ebc;
$custom-light: #7e73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#303ebc",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 188
  },
  "hsl": {
    "h": 234,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44095,
    "c": 0.19545,
    "h": 270.7
  },
  "luminance": 0.07704
}

Semantic roles & 50–950 ramp

primary

#303EBC

secondary

#CAC27E

accent

#D345E3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #303EBC

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

Preview Lab → · Contrast checker → · Palette generator →