#303AA8#303AA8

#303AA8 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.174 H 272.2°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#303AA8
RGB	rgb(48, 58, 168)
HSL	hsl(235, 56%, 42%)
HSV	hsv(235, 71%, 66%)
CMYK	cmyk(71.4%, 65.5%, 0%, 34.1%)
CIE-LAB	lab(30.59, 33.60, -60.20)
CIE-LCH	lch(30.59, 68.94, 299.17°)
OKLab	oklab(41.53% 0.0066 -0.1739)
OKLCH	oklch(41.53% 0.174 272.2)
XYZ	xyz(9.7975, 6.4807, 37.7728)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303AA8 #A89E30

analogous

#3076A8 #303AA8 #6230A8

triadic

#303AA8 #A8303A #3AA830

tetradic

#303AA8 #A83076 #A89E30 #30A862

square

#303AA8 #A83076 #A89E30 #30A862

split-complementary

#303AA8 #A86230 #76A830

monochromatic

#151949 #222A78 #303AA8 #4A55CB #7A81D9

Accessibility & contrast

On white

9.14

#303AA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#303AA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303AA8

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303AA8	#FFFFFF	#000000	##FFFFFF
##303AA8	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAB

Deuteranopia (green-blind)

#0042A6

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #303aa8;
/* rgb */ color: rgb(48, 58, 168);
/* oklch */ color: oklch(41.5% 0.174 272.2);

Tailwind

colors: {
  custom: {
    50: '#7970c3',
    500: '#303aa8',
    950: '#000000',
  },
}

SCSS

$custom: #303aa8;
$custom-light: #7970c3;
$custom-dark: #000000;

JSON

{
  "hex": "#303aa8",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 168
  },
  "hsl": {
    "h": 235,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41525,
    "c": 0.17403,
    "h": 272.2
  },
  "luminance": 0.06482
}

Semantic roles & 50–950 ramp

primary

#303AA8

secondary

#C1BB73

accent

#D249DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #303AA8

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

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