#3757DE#3757DE

#3757DE is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 51.9% C 0.208 H 267.9°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#3757DE
RGB	rgb(55, 87, 222)
HSL	hsl(229, 72%, 54%)
HSV	hsv(229, 75%, 87%)
CMYK	cmyk(75.2%, 60.8%, 0%, 12.9%)
CIE-LAB	lab(42.61, 35.36, -72.07)
CIE-LCH	lch(42.61, 80.28, 296.13°)
OKLab	oklab(51.89% -0.0076 -0.2083)
OKLCH	oklch(51.89% 0.208 267.9)
XYZ	xyz(18.1640, 12.9005, 70.6258)
Luminance	0.1290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3757DE #DEBE37

analogous

#37ABDE #3757DE #6B37DE

triadic

#3757DE #DE3757 #57DE37

tetradic

#3757DE #DE37AB #DEBE37 #37DE6B

square

#3757DE #DE37AB #DEBE37 #37DE6B

split-complementary

#3757DE #DE6B37 #ABDE37

monochromatic

#162B85 #1F3CB9 #3757DE #6C83E7 #A0AFEF

Accessibility & contrast

On white

5.86

#3757DE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3757DE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3757DE

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3757DE	#FFFFFF	#000000	##FFFFFF
##3757DE	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DE2

Deuteranopia (green-blind)

#005DDB

Tritanopia (blue-blind)

#007A92

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3757de;
/* rgb */ color: rgb(55, 87, 222);
/* oklch */ color: oklch(51.9% 0.208 267.9);

Tailwind

colors: {
  custom: {
    50: '#8686e9',
    500: '#3757de',
    950: '#000000',
  },
}

SCSS

$custom: #3757de;
$custom-light: #8686e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3757de",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 222
  },
  "hsl": {
    "h": 228.503,
    "s": 71.674,
    "l": 54.314
  },
  "oklch": {
    "l": 0.5189,
    "c": 0.20843,
    "h": 267.9
  },
  "luminance": 0.12903
}

Semantic roles & 50–950 ramp

primary

#3757DE

secondary

#DCCE95

accent

#CC39EE

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3757DE

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

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