#303AB6#303AB6

#303AB6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.192 H 271.6°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#303AB6
RGB	rgb(48, 58, 182)
HSL	hsl(236, 58%, 45%)
HSV	hsv(236, 74%, 71%)
CMYK	cmyk(73.6%, 68.1%, 0%, 28.6%)
CIE-LAB	lab(31.88, 38.56, -66.45)
CIE-LCH	lch(31.88, 76.83, 300.13°)
OKLab	oklab(42.85% 0.0054 -0.1922)
OKLCH	oklch(42.85% 0.192 271.6)
XYZ	xyz(11.1726, 7.0307, 45.0151)
Luminance	0.0703 (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

#303AB6 #B6AC30

analogous

#307DB6 #303AB6 #6930B6

triadic

#303AB6 #B6303A #3AB630

tetradic

#303AB6 #B6307D #B6AC30 #30B669

square

#303AB6 #B6307D #B6AC30 #30B669

split-complementary

#303AB6 #B66930 #7DB630

monochromatic

#161B55 #232B86 #303AB6 #525BD1 #8289DE

Accessibility & contrast

On white

8.73

#303AB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#303AB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303AB6

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303AB6	#FFFFFF	#000000	##FFFFFF
##303AB6	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #303ab6;
/* rgb */ color: rgb(48, 58, 182);
/* oklch */ color: oklch(42.9% 0.192 271.6);

Tailwind

colors: {
  custom: {
    50: '#7d70cd',
    500: '#303ab6',
    950: '#000000',
  },
}

SCSS

$custom: #303ab6;
$custom-light: #7d70cd;
$custom-dark: #000000;

JSON

{
  "hex": "#303ab6",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 182
  },
  "hsl": {
    "h": 235.522,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4285,
    "c": 0.19227,
    "h": 271.6
  },
  "luminance": 0.07032
}

Semantic roles & 50–950 ramp

primary

#303AB6

secondary

#C7C27B

accent

#D646E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #303AB6

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

Preview Lab → · Contrast checker → · Palette generator →