#3757C2#3757C2

#3757C2 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.6% C 0.172 H 267.2°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#3757C2
RGB	rgb(55, 87, 194)
HSL	hsl(226, 56%, 49%)
HSV	hsv(226, 72%, 76%)
CMYK	cmyk(71.6%, 55.2%, 0%, 23.9%)
CIE-LAB	lab(40.45, 25.19, -59.49)
CIE-LCH	lch(40.45, 64.60, 292.95°)
OKLab	oklab(49.59% -0.0083 -0.1713)
OKLCH	oklch(49.59% 0.172 267.2)
XYZ	xyz(14.7180, 11.5221, 52.4768)
Luminance	0.1152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3757C2 #C2A237

analogous

#379DC2 #3757C2 #5D37C2

triadic

#3757C2 #C23757 #57C237

tetradic

#3757C2 #C2379D #C2A237 #37C25D

square

#3757C2 #C2379D #C2A237 #37C25D

split-complementary

#3757C2 #C25D37 #9DC237

monochromatic

#1C2C63 #294292 #3757C2 #637DD3 #93A5E0

Accessibility & contrast

On white

6.35

#3757C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3757C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3757C2

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3757C2	#FFFFFF	#000000	##FFFFFF
##3757C2	1.00	6.35	3.30	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C6

Deuteranopia (green-blind)

#0059C0

Tritanopia (blue-blind)

#007184

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3757c2;
/* rgb */ color: rgb(55, 87, 194);
/* oklch */ color: oklch(49.6% 0.172 267.2);

Tailwind

colors: {
  custom: {
    50: '#8085d5',
    500: '#3757c2',
    950: '#000000',
  },
}

SCSS

$custom: #3757c2;
$custom-light: #8085d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3757c2",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 194
  },
  "hsl": {
    "h": 226.187,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49594,
    "c": 0.17153,
    "h": 267.2
  },
  "luminance": 0.11524
}

Semantic roles & 50–950 ramp

primary

#3757C2

secondary

#CBBC89

accent

#BC49DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3757C2

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

Preview Lab → · Contrast checker → · Palette generator →