#303AA7#303AA7

#303AA7 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.173 H 272.2°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#303AA7
RGB	rgb(48, 58, 167)
HSL	hsl(235, 55%, 42%)
HSV	hsv(235, 71%, 65%)
CMYK	cmyk(71.3%, 65.3%, 0%, 34.5%)
CIE-LAB	lab(30.51, 33.24, -59.74)
CIE-LCH	lch(30.51, 68.37, 299.09°)
OKLab	oklab(41.43% 0.0067 -0.1726)
OKLCH	oklch(41.43% 0.173 272.2)
XYZ	xyz(9.7047, 6.4436, 37.2840)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303AA7 #A79D30

analogous

#3076A7 #303AA7 #6230A7

triadic

#303AA7 #A7303A #3AA730

tetradic

#303AA7 #A73076 #A79D30 #30A762

square

#303AA7 #A73076 #A79D30 #30A762

split-complementary

#303AA7 #A76230 #76A730

monochromatic

#151948 #222977 #303AA7 #4954CB #7981D8

Accessibility & contrast

On white

9.17

#303AA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#303AA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303AA7

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303AA7	#FFFFFF	#000000	##FFFFFF
##303AA7	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAA

Deuteranopia (green-blind)

#0042A5

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #303aa7;
/* rgb */ color: rgb(48, 58, 167);
/* oklch */ color: oklch(41.4% 0.173 272.2);

Tailwind

colors: {
  custom: {
    50: '#7970c2',
    500: '#303aa7',
    950: '#000000',
  },
}

SCSS

$custom: #303aa7;
$custom-light: #7970c2;
$custom-dark: #000000;

JSON

{
  "hex": "#303aa7",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 167
  },
  "hsl": {
    "h": 234.958,
    "s": 55.349,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41432,
    "c": 0.1727,
    "h": 272.2
  },
  "luminance": 0.06445
}

Semantic roles & 50–950 ramp

primary

#303AA7

secondary

#C1BA72

accent

#D249DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #303AA7

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

Preview Lab → · Contrast checker → · Palette generator →