#303571#303571

#303571 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.9% C 0.102 H 276.4°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#303571
RGB	rgb(48, 53, 113)
HSL	hsl(235, 40%, 32%)
HSV	hsv(235, 58%, 44%)
CMYK	cmyk(57.5%, 53.1%, 0%, 55.7%)
CIE-LAB	lab(24.85, 16.99, -35.49)
CIE-LCH	lch(24.85, 39.35, 295.58°)
OKLab	oklab(35.87% 0.0113 -0.1014)
OKLCH	oklch(35.87% 0.102 276.4)
XYZ	xyz(5.4717, 4.3665, 16.1741)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303571 #716C30

analogous

#305671 #303571 #4C3071

triadic

#303571 #713035 #357130

tetradic

#303571 #713056 #716C30 #30714C

square

#303571 #713056 #716C30 #30714C

split-complementary

#303571 #714C30 #567130

monochromatic

#0C0D1B #1E2146 #303571 #42499C #6067BB

Accessibility & contrast

On white

11.21

#303571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#303571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303571

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303571	#FFFFFF	#000000	##FFFFFF
##303571	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163E73

Deuteranopia (green-blind)

#0D3870

Tritanopia (blue-blind)

#0F424D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #303571;
/* rgb */ color: rgb(48, 53, 113);
/* oklch */ color: oklch(35.9% 0.102 276.4);

Tailwind

colors: {
  custom: {
    50: '#6e6c9a',
    500: '#303571',
    950: '#000000',
  },
}

SCSS

$custom: #303571;
$custom-light: #6e6c9a;
$custom-dark: #000000;

JSON

{
  "hex": "#303571",
  "rgb": {
    "r": 48,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 235.385,
    "s": 40.373,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35873,
    "c": 0.102,
    "h": 276.4
  },
  "luminance": 0.04367
}

Semantic roles & 50–950 ramp

primary

#303571

secondary

#A29D5B

accent

#C758D0

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #303571

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

Preview Lab → · Contrast checker → · Palette generator →