#3037AF#3037AF

#3037AF is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.7% C 0.187 H 272.4°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#3037AF
RGB	rgb(48, 55, 175)
HSL	hsl(237, 57%, 44%)
HSV	hsv(237, 73%, 69%)
CMYK	cmyk(72.6%, 68.6%, 0%, 31.4%)
CIE-LAB	lab(30.53, 37.97, -64.49)
CIE-LCH	lch(30.53, 74.84, 300.49°)
OKLab	oklab(41.68% 0.008 -0.1865)
OKLCH	oklch(41.68% 0.187 272.4)
XYZ	xyz(10.3204, 6.4549, 41.2511)
Luminance	0.0646 (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

#3037AF #AFA830

analogous

#3076AF #3037AF #6830AF

triadic

#3037AF #AF3037 #37AF30

tetradic

#3037AF #AF3076 #AFA830 #30AF68

square

#3037AF #AF3076 #AFA830 #30AF68

split-complementary

#3037AF #AF6830 #76AF30

monochromatic

#16194F #23287F #3037AF #4E55CE #7E83DC

Accessibility & contrast

On white

9.17

#3037AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3037AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3037AF

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3037AF	#FFFFFF	#000000	##FFFFFF
##3037AF	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB3

Deuteranopia (green-blind)

#0042AD

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3037af;
/* rgb */ color: rgb(48, 55, 175);
/* oklch */ color: oklch(41.7% 0.187 272.4);

Tailwind

colors: {
  custom: {
    50: '#7b6ec8',
    500: '#3037af',
    950: '#000000',
  },
}

SCSS

$custom: #3037af;
$custom-light: #7b6ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#3037af",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 175
  },
  "hsl": {
    "h": 236.693,
    "s": 56.951,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41676,
    "c": 0.18665,
    "h": 272.4
  },
  "luminance": 0.06456
}

Semantic roles & 50–950 ramp

primary

#3037AF

secondary

#C4C076

accent

#D848E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3037AF

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

Preview Lab → · Contrast checker → · Palette generator →