#303BBD#303BBD

#303BBD is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.7% C 0.200 H 271.2°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#303BBD
RGB	rgb(48, 59, 189)
HSL	hsl(235, 59%, 46%)
HSV	hsv(235, 75%, 74%)
CMYK	cmyk(74.6%, 68.8%, 0%, 25.9%)
CIE-LAB	lab(32.76, 40.40, -69.12)
CIE-LCH	lch(32.76, 80.06, 300.30°)
OKLab	oklab(43.69% 0.0041 -0.2)
OKLCH	oklch(43.69% 0.2 271.2)
XYZ	xyz(11.9651, 7.4292, 48.9376)
Luminance	0.0743 (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

#303BBD #BDB230

analogous

#3082BD #303BBD #6C30BD

triadic

#303BBD #BD303B #3BBD30

tetradic

#303BBD #BD3082 #BDB230 #30BD6C

square

#303BBD #BD3082 #BDB230 #30BD6C

split-complementary

#303BBD #BD6C30 #82BD30

monochromatic

#171D5B #242C8C #303BBD #5660D4 #878EE0

Accessibility & contrast

On white

8.45

#303BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#303BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303BBD

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303BBD	#FFFFFF	#000000	##FFFFFF
##303BBD	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C1

Deuteranopia (green-blind)

#0046BB

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #303bbd;
/* rgb */ color: rgb(48, 59, 189);
/* oklch */ color: oklch(43.7% 0.200 271.2);

Tailwind

colors: {
  custom: {
    50: '#7e71d2',
    500: '#303bbd',
    950: '#000000',
  },
}

SCSS

$custom: #303bbd;
$custom-light: #7e71d2;
$custom-dark: #000000;

JSON

{
  "hex": "#303bbd",
  "rgb": {
    "r": 48,
    "g": 59,
    "b": 189
  },
  "hsl": {
    "h": 235.319,
    "s": 59.494,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43694,
    "c": 0.20004,
    "h": 271.2
  },
  "luminance": 0.0743
}

Semantic roles & 50–950 ramp

primary

#303BBD

secondary

#CAC47F

accent

#D645E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #303BBD

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

Preview Lab → · Contrast checker → · Palette generator →