#3743BE#3743BE

#3743BE is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.190 H 272.0°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#3743BE
RGB	rgb(55, 67, 190)
HSL	hsl(235, 55%, 48%)
HSV	hsv(235, 71%, 75%)
CMYK	cmyk(71.1%, 64.7%, 0%, 25.5%)
CIE-LAB	lab(35.09, 36.57, -65.88)
CIE-LCH	lch(35.09, 75.35, 299.03°)
OKLab	oklab(45.52% 0.0065 -0.1903)
OKLCH	oklch(45.52% 0.19 272)
XYZ	xyz(12.8738, 8.5430, 49.6757)
Luminance	0.0854 (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

#3743BE #BEB237

analogous

#3786BE #3743BE #6F37BE

triadic

#3743BE #BE3743 #43BE37

tetradic

#3743BE #BE3786 #BEB237 #37BE6F

square

#3743BE #BE3786 #BEB237 #37BE6F

split-complementary

#3743BE #BE6F37 #86BE37

monochromatic

#1C225F #29328F #3743BE #616BD1 #9097DF

Accessibility & contrast

On white

7.75

#3743BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3743BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3743BE

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3743BE	#FFFFFF	#000000	##FFFFFF
##3743BE	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C2

Deuteranopia (green-blind)

#004CBC

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3743be;
/* rgb */ color: rgb(55, 67, 190);
/* oklch */ color: oklch(45.5% 0.190 272.0);

Tailwind

colors: {
  custom: {
    50: '#8077d3',
    500: '#3743be',
    950: '#000000',
  },
}

SCSS

$custom: #3743be;
$custom-light: #8077d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3743be",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 190
  },
  "hsl": {
    "h": 234.667,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45516,
    "c": 0.19044,
    "h": 272
  },
  "luminance": 0.08544
}

Semantic roles & 50–950 ramp

primary

#3743BE

secondary

#CAC487

accent

#D149DE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3743BE

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

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