#303AA1#303AA1

#303AA1 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.165 H 272.5°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#303AA1
RGB	rgb(48, 58, 161)
HSL	hsl(235, 54%, 41%)
HSV	hsv(235, 70%, 63%)
CMYK	cmyk(70.2%, 64%, 0%, 36.9%)
CIE-LAB	lab(29.98, 31.08, -56.98)
CIE-LCH	lch(29.98, 64.91, 298.61°)
OKLab	oklab(40.88% 0.0071 -0.1645)
OKLCH	oklch(40.88% 0.165 272.5)
XYZ	xyz(9.1628, 6.2268, 34.4303)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303AA1 #A19730

analogous

#3072A1 #303AA1 #5E30A1

triadic

#303AA1 #A1303A #3AA130

tetradic

#303AA1 #A13072 #A19730 #30A15E

square

#303AA1 #A13072 #A19730 #30A15E

split-complementary

#303AA1 #A15E30 #72A130

monochromatic

#141843 #222972 #303AA1 #4652C8 #757ED6

Accessibility & contrast

On white

9.35

#303AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#303AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303AA1

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303AA1	#FFFFFF	#000000	##FFFFFF
##303AA1	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #303aa1;
/* rgb */ color: rgb(48, 58, 161);
/* oklch */ color: oklch(40.9% 0.165 272.5);

Tailwind

colors: {
  custom: {
    50: '#7870be',
    500: '#303aa1',
    950: '#000000',
  },
}

SCSS

$custom: #303aa1;
$custom-light: #7870be;
$custom-dark: #000000;

JSON

{
  "hex": "#303aa1",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 161
  },
  "hsl": {
    "h": 234.69,
    "s": 54.067,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40883,
    "c": 0.16464,
    "h": 272.5
  },
  "luminance": 0.06228
}

Semantic roles & 50–950 ramp

primary

#303AA1

secondary

#BEB76F

accent

#D04ADD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #303AA1

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

Preview Lab → · Contrast checker → · Palette generator →