#3657C4#3657C4

#3657C4 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.7% C 0.175 H 267.0°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#3657C4
RGB	rgb(54, 87, 196)
HSL	hsl(226, 57%, 49%)
HSV	hsv(226, 72%, 77%)
CMYK	cmyk(72.4%, 55.6%, 0%, 23.1%)
CIE-LAB	lab(40.55, 25.80, -60.49)
CIE-LCH	lch(40.55, 65.76, 293.10°)
OKLab	oklab(49.71% -0.0091 -0.1743)
OKLCH	oklch(49.71% 0.175 267)
XYZ	xyz(14.8899, 11.5846, 53.6652)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3657C4 #C4A336

analogous

#369EC4 #3657C4 #5C36C4

triadic

#3657C4 #C43657 #57C436

tetradic

#3657C4 #C4369E #C4A336 #36C45C

square

#3657C4 #C4369E #C4A336 #36C45C

split-complementary

#3657C4 #C45C36 #9EC436

monochromatic

#1C2C64 #294294 #3657C4 #637DD4 #93A5E1

Accessibility & contrast

On white

6.33

#3657C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#3657C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3657C4

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3657C4	#FFFFFF	#000000	##FFFFFF
##3657C4	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C8

Deuteranopia (green-blind)

#0059C2

Tritanopia (blue-blind)

#007285

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3657c4;
/* rgb */ color: rgb(54, 87, 196);
/* oklch */ color: oklch(49.7% 0.175 267.0);

Tailwind

colors: {
  custom: {
    50: '#8085d7',
    500: '#3657c4',
    950: '#000000',
  },
}

SCSS

$custom: #3657c4;
$custom-light: #8085d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3657c4",
  "rgb": {
    "r": 54,
    "g": 87,
    "b": 196
  },
  "hsl": {
    "h": 226.056,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.49705,
    "c": 0.17453,
    "h": 267
  },
  "luminance": 0.11586
}

Semantic roles & 50–950 ramp

primary

#3657C4

secondary

#CCBD89

accent

#BD48E0

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3657C4

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

Preview Lab → · Contrast checker → · Palette generator →