#3037BE#3037BE

#3037BE is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.2% C 0.206 H 271.7°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#3037BE
RGB	rgb(48, 55, 190)
HSL	hsl(237, 60%, 47%)
HSV	hsv(237, 75%, 75%)
CMYK	cmyk(74.7%, 71.1%, 0%, 25.5%)
CIE-LAB	lab(31.98, 43.15, -71.00)
CIE-LCH	lch(31.98, 83.08, 301.29°)
OKLab	oklab(43.16% 0.0061 -0.2055)
OKLCH	oklch(43.16% 0.206 271.7)
XYZ	xyz(11.8762, 7.0772, 49.4453)
Luminance	0.0708 (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

#3037BE #BEB730

analogous

#307EBE #3037BE #7030BE

triadic

#3037BE #BE3037 #37BE30

tetradic

#3037BE #BE307E #BEB730 #30BE70

square

#3037BE #BE307E #BEB730 #30BE70

split-complementary

#3037BE #BE7030 #7EBE30

monochromatic

#171B5C #24298D #3037BE #575DD4 #888CE1

Accessibility & contrast

On white

8.69

#3037BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3037BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3037BE

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3037BE	#FFFFFF	#000000	##FFFFFF
##3037BE	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C2

Deuteranopia (green-blind)

#0044BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3037be;
/* rgb */ color: rgb(48, 55, 190);
/* oklch */ color: oklch(43.2% 0.206 271.7);

Tailwind

colors: {
  custom: {
    50: '#7f6fd3',
    500: '#3037be',
    950: '#000000',
  },
}

SCSS

$custom: #3037be;
$custom-light: #7f6fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3037be",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 190
  },
  "hsl": {
    "h": 237.042,
    "s": 59.664,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43159,
    "c": 0.20557,
    "h": 271.7
  },
  "luminance": 0.07078
}

Semantic roles & 50–950 ramp

primary

#3037BE

secondary

#CBC77F

accent

#DB45E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3037BE

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

Preview Lab → · Contrast checker → · Palette generator →