#303EC9#303EC9

#303EC9 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.4% C 0.212 H 270.3°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#303EC9
RGB	rgb(48, 62, 201)
HSL	hsl(235, 61%, 49%)
HSV	hsv(235, 76%, 79%)
CMYK	cmyk(76.1%, 69.2%, 0%, 21.2%)
CIE-LAB	lab(34.58, 42.74, -73.17)
CIE-LCH	lch(34.58, 84.74, 300.29°)
OKLab	oklab(45.35% 0.0013 -0.2118)
OKLCH	oklch(45.35% 0.212 270.3)
XYZ	xyz(13.4806, 8.2892, 56.1365)
Luminance	0.0829 (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

#303EC9 #C9BB30

analogous

#308BC9 #303EC9 #6F30C9

triadic

#303EC9 #C9303E #3EC930

tetradic

#303EC9 #C9308B #C9BB30 #30C96F

square

#303EC9 #C9308B #C9BB30 #30C96F

split-complementary

#303EC9 #C96F30 #8BC930

monochromatic

#182066 #242F98 #303EC9 #5E69D8 #8F97E4

Accessibility & contrast

On white

7.90

#303EC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#303EC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303EC9

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303EC9	#FFFFFF	#000000	##FFFFFF
##303EC9	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CD

Deuteranopia (green-blind)

#004AC6

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #303ec9;
/* rgb */ color: rgb(48, 62, 201);
/* oklch */ color: oklch(45.4% 0.212 270.3);

Tailwind

colors: {
  custom: {
    50: '#8174db',
    500: '#303ec9',
    950: '#000000',
  },
}

SCSS

$custom: #303ec9;
$custom-light: #8174db;
$custom-dark: #000000;

JSON

{
  "hex": "#303ec9",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 201
  },
  "hsl": {
    "h": 234.51,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45351,
    "c": 0.2118,
    "h": 270.3
  },
  "luminance": 0.08291
}

Semantic roles & 50–950 ramp

primary

#303EC9

secondary

#CFC886

accent

#D643E5

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #303EC9

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

Preview Lab → · Contrast checker → · Palette generator →