#303AA9#303AA9

#303AA9 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.175 H 272.1°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#303AA9
RGB	rgb(48, 58, 169)
HSL	hsl(235, 56%, 43%)
HSV	hsv(235, 72%, 66%)
CMYK	cmyk(71.6%, 65.7%, 0%, 33.7%)
CIE-LAB	lab(30.68, 33.96, -60.65)
CIE-LCH	lch(30.68, 69.51, 299.25°)
OKLab	oklab(41.62% 0.0066 -0.1752)
OKLCH	oklch(41.62% 0.175 272.1)
XYZ	xyz(9.8910, 6.5181, 38.2653)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303AA9 #A99F30

analogous

#3077A9 #303AA9 #6230A9

triadic

#303AA9 #A9303A #3AA930

tetradic

#303AA9 #A93077 #A99F30 #30A962

square

#303AA9 #A93077 #A99F30 #30A962

split-complementary

#303AA9 #A96230 #77A930

monochromatic

#15194A #222A79 #303AA9 #4A55CC #7A82D9

Accessibility & contrast

On white

9.12

#303AA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#303AA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303AA9

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303AA9	#FFFFFF	#000000	##FFFFFF
##303AA9	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAD

Deuteranopia (green-blind)

#0043A7

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #303aa9;
/* rgb */ color: rgb(48, 58, 169);
/* oklch */ color: oklch(41.6% 0.175 272.1);

Tailwind

colors: {
  custom: {
    50: '#7a70c4',
    500: '#303aa9',
    950: '#000000',
  },
}

SCSS

$custom: #303aa9;
$custom-light: #7a70c4;
$custom-dark: #000000;

JSON

{
  "hex": "#303aa9",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 169
  },
  "hsl": {
    "h": 235.041,
    "s": 55.76,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41617,
    "c": 0.17535,
    "h": 272.1
  },
  "luminance": 0.06519
}

Semantic roles & 50–950 ramp

primary

#303AA9

secondary

#C2BB73

accent

#D349DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #303AA9

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

Preview Lab → · Contrast checker → · Palette generator →