#303CBE#303CBE

#303CBE is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.0% C 0.200 H 271.0°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#303CBE
RGB	rgb(48, 60, 190)
HSL	hsl(235, 60%, 47%)
HSV	hsv(235, 75%, 75%)
CMYK	cmyk(74.7%, 68.4%, 0%, 25.5%)
CIE-LAB	lab(33.08, 40.13, -69.18)
CIE-LCH	lch(33.08, 79.98, 300.12°)
OKLab	oklab(43.95% 0.0035 -0.2002)
OKLCH	oklch(43.95% 0.2 271)
XYZ	xyz(12.1259, 7.5765, 49.5286)
Luminance	0.0758 (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

#303CBE #BEB230

analogous

#3083BE #303CBE #6B30BE

triadic

#303CBE #BE303C #3CBE30

tetradic

#303CBE #BE3083 #BEB230 #30BE6B

square

#303CBE #BE3083 #BEB230 #30BE6B

split-complementary

#303CBE #BE6B30 #83BE30

monochromatic

#171D5C #242D8D #303CBE #5761D4 #888FE1

Accessibility & contrast

On white

8.35

#303CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#303CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303CBE

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303CBE	#FFFFFF	#000000	##FFFFFF
##303CBE	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#0047BC

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #303cbe;
/* rgb */ color: rgb(48, 60, 190);
/* oklch */ color: oklch(44.0% 0.200 271.0);

Tailwind

colors: {
  custom: {
    50: '#7e72d3',
    500: '#303cbe',
    950: '#000000',
  },
}

SCSS

$custom: #303cbe;
$custom-light: #7e72d3;
$custom-dark: #000000;

JSON

{
  "hex": "#303cbe",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 190
  },
  "hsl": {
    "h": 234.93,
    "s": 59.664,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43954,
    "c": 0.20021,
    "h": 271
  },
  "luminance": 0.07578
}

Semantic roles & 50–950 ramp

primary

#303CBE

secondary

#CBC47F

accent

#D545E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #303CBE

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

Preview Lab → · Contrast checker → · Palette generator →