#3741BE#3741BE

#3741BE is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.2% C 0.193 H 272.3°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#3741BE
RGB	rgb(55, 65, 190)
HSL	hsl(236, 55%, 48%)
HSV	hsv(236, 71%, 75%)
CMYK	cmyk(71.1%, 65.8%, 0%, 25.5%)
CIE-LAB	lab(34.62, 37.82, -66.65)
CIE-LCH	lch(34.62, 76.63, 299.57°)
OKLab	oklab(45.17% 0.0079 -0.1926)
OKLCH	oklch(45.17% 0.193 272.3)
XYZ	xyz(12.7570, 8.3093, 49.6368)
Luminance	0.0831 (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

#3741BE #BEB437

analogous

#3784BE #3741BE #7137BE

triadic

#3741BE #BE3741 #41BE37

tetradic

#3741BE #BE3784 #BEB437 #37BE71

square

#3741BE #BE3784 #BEB437 #37BE71

split-complementary

#3741BE #BE7137 #84BE37

monochromatic

#1C215F #29318F #3741BE #6169D1 #9096DF

Accessibility & contrast

On white

7.89

#3741BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3741BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3741BE

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3741BE	#FFFFFF	#000000	##FFFFFF
##3741BE	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C2

Deuteranopia (green-blind)

#004BBC

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3741be;
/* rgb */ color: rgb(55, 65, 190);
/* oklch */ color: oklch(45.2% 0.193 272.3);

Tailwind

colors: {
  custom: {
    50: '#8076d3',
    500: '#3741be',
    950: '#000000',
  },
}

SCSS

$custom: #3741be;
$custom-light: #8076d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3741be",
  "rgb": {
    "r": 55,
    "g": 65,
    "b": 190
  },
  "hsl": {
    "h": 235.556,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45173,
    "c": 0.19276,
    "h": 272.3
  },
  "luminance": 0.08311
}

Semantic roles & 50–950 ramp

primary

#3741BE

secondary

#CAC587

accent

#D349DE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3741BE

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

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