#3758D2#3758D2

#3758D2 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.1% C 0.192 H 267.5°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3758D2
RGB	rgb(55, 88, 210)
HSL	hsl(227, 63%, 52%)
HSV	hsv(227, 74%, 82%)
CMYK	cmyk(73.8%, 58.1%, 0%, 17.6%)
CIE-LAB	lab(41.91, 30.39, -66.35)
CIE-LCH	lch(41.91, 72.98, 294.61°)
OKLab	oklab(51.07% -0.0084 -0.1915)
OKLCH	oklch(51.07% 0.192 267.5)
XYZ	xyz(16.6941, 12.4430, 62.4822)
Luminance	0.1245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758D2 #D2B137

analogous

#37A5D2 #3758D2 #6437D2

triadic

#3758D2 #D23758 #58D237

tetradic

#3758D2 #D237A5 #D2B137 #37D264

square

#3758D2 #D237A5 #D2B137 #37D264

split-complementary

#3758D2 #D26437 #A5D237

monochromatic

#1A2D74 #2541A6 #3758D2 #6982DD #9BABE8

Accessibility & contrast

On white

6.02

#3758D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3758D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758D2

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758D2	#FFFFFF	#000000	##FFFFFF
##3758D2	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD6

Deuteranopia (green-blind)

#005CD0

Tritanopia (blue-blind)

#00778C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3758d2;
/* rgb */ color: rgb(55, 88, 210);
/* oklch */ color: oklch(51.1% 0.192 267.5);

Tailwind

colors: {
  custom: {
    50: '#8386e1',
    500: '#3758d2',
    950: '#000000',
  },
}

SCSS

$custom: #3758d2;
$custom-light: #8386e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3758d2",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 210
  },
  "hsl": {
    "h": 227.226,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51072,
    "c": 0.19168,
    "h": 267.5
  },
  "luminance": 0.12445
}

Semantic roles & 50–950 ramp

primary

#3758D2

secondary

#D4C690

accent

#C341E6

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3758D2

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

Preview Lab → · Contrast checker → · Palette generator →